# Compute Engine API . urlMaps

## Instance Methods

Retrieves the list of all UrlMap resources, regional and global,

Retrieves the next page of results.

Close httplib2 connections.

Deletes the specified UrlMap resource.

Returns the specified UrlMap resource.

Creates a UrlMap resource in the specified project using

Initiates a cache invalidation operation, invalidating the specified path,

Retrieves the list of UrlMap resources available to the specified

Retrieves the next page of results.

Patches the specified UrlMap resource with the data included in the

Returns permissions that a caller has on the specified resource.

Updates the specified UrlMap resource with the data included in the

Runs static validation for the UrlMap. In particular, the tests of the

### Method Details

`aggregatedList(project, filter=None, includeAllScopes=None, maxResults=None, orderBy=None, pageToken=None, returnPartialSuccess=None, serviceProjectNumber=None, x__xgafv=None)`

    Retrieves the list of all UrlMap resources, regional and global,
    available to the specified project.

    To prevent failure, Google recommends that you set the
    `returnPartialSuccess` parameter to `true`.

    Args:
      project: string, Name of the project scoping this request. (required)
      filter: string, A filter expression that filters resources listed in the response. Most
    Compute resources support two types of filter expressions:
    expressions that support regular expressions and expressions that follow
    API improvement proposal AIP-160.
    These two types of filter expressions cannot be mixed in one request.

    If you want to use AIP-160, your expression must specify the field name, an
    operator, and the value that you want to use for filtering. The value
    must be a string, a number, or a boolean. The operator
    must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`.

    For example, if you are filtering Compute Engine instances, you can
    exclude instances named `example-instance` by specifying
    `name != example-instance`.

    The `:*` comparison can be used to test whether a key has been defined.
    For example, to find all objects with `owner` label use:
    ```
    labels.owner:*
    ```

    You can also filter nested fields. For example, you could specify
    `scheduling.automaticRestart = false` to include instances only
    if they are not scheduled for automatic restarts. You can use filtering
    on nested fields to filter based onresource labels.

    To filter on multiple expressions, provide each separate expression within
    parentheses. For example:
    ```
    (scheduling.automaticRestart = true)
    (cpuPlatform = "Intel Skylake")
    ```
    By default, each expression is an `AND` expression. However, you
    can include `AND` and `OR` expressions explicitly.
    For example:
    ```
    (cpuPlatform = "Intel Skylake") OR
    (cpuPlatform = "Intel Broadwell") AND
    (scheduling.automaticRestart = true)
    ```

    If you want to use a regular expression, use the `eq` (equal) or `ne`
    (not equal) operator against a single un-parenthesized expression with or
    without quotes or against multiple parenthesized expressions. Examples:

    `fieldname eq unquoted literal`
    `fieldname eq 'single quoted literal'`
    `fieldname eq "double quoted literal"`
    `(fieldname1 eq literal) (fieldname2 ne "literal")`

    The literal value is interpreted as a regular expression using GoogleRE2 library syntax.
    The literal value must match the entire field.

    For example, to filter for instances that do not end with name "instance",
    you would use `name ne .*instance`.

    You cannot combine constraints on multiple fields using regular
    expressions.
      includeAllScopes: boolean, Indicates whether every visible scope for each scope type (zone, region,
    global) should be included in the response. For new resource types added
    after this field, the flag has no effect as new resource types will always
    include every visible scope for each scope type in response. For resource
    types which predate this field, if this flag is omitted or false, only
    scopes of the scope types where the resource type is expected to be found
    will be included.
      maxResults: integer, The maximum number of results per page that should be returned.
    If the number of available results is larger than `maxResults`,
    Compute Engine returns a `nextPageToken` that can be used to get
    the next page of results in subsequent list requests. Acceptable values are
    `0` to `500`, inclusive. (Default: `500`)
      orderBy: string, Sorts list results by a certain order. By default, results
    are returned in alphanumerical order based on the resource name.

    You can also sort results in descending order based on the creation
    timestamp using `orderBy="creationTimestamp desc"`. This sorts
    results based on the `creationTimestamp` field in
    reverse chronological order (newest result first). Use this to sort
    resources like operations so that the newest operation is returned first.

    Currently, only sorting by `name` or
    `creationTimestamp desc` is supported.
      pageToken: string, Specifies a page token to use. Set `pageToken` to the
    `nextPageToken` returned by a previous list request to get
    the next page of results.
      returnPartialSuccess: boolean, Opt-in for partial success behavior which provides partial results in case
    of failure. The default value is false.

    For example, when partial success behavior is enabled, aggregatedList for a
    single zone scope either returns all resources in the zone or no resources,
    with an error code.
      serviceProjectNumber: string, The Shared VPC service project id or service project number for which
    aggregated list request is invoked for subnetworks list-usable api.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        {
      "id": "A String", # [Output Only] Unique identifier for the resource; defined by the server.
      "items": { # A list of UrlMapsScopedList resources.
        "a_key": { # Name of the scope containing this set of UrlMaps.
          "urlMaps": [ # A list of UrlMaps contained in this scope.
            { # Represents a URL Map resource.
                #
                # Compute Engine has two URL Map resources:
                #
                # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
                # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
                #
                # A URL map resource is a component of certain types of cloud load balancers
                # and Traffic Director:
                #
                # * urlMaps are used by global external Application Load
                # Balancers, classic Application Load Balancers, and cross-region internal
                # Application Load Balancers.
                # * regionUrlMaps are used by internal Application Load Balancers,
                # regional external Application Load Balancers and regional internal
                # Application Load Balancers.
                #
                # For a list of supported URL map features by the load balancer type, see the
                # Load balancing features: Routing and traffic management table.
                #
                # For a list of supported URL map features for Traffic Director, see the
                # Traffic Director features: Routing and traffic management table.
                #
                # This resource defines mappings from hostnames and URL paths to either a
                # backend service or a backend bucket.
                #
                # To use the global urlMaps resource, the backend service must
                # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
                # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
                # information, read URL
                # Map Concepts.
              "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
                  # text format.
              "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # This policy takes
                  # effect at the load balancer level and applies only when no policy has been
                  # defined for the error code at lower levels like PathMatcher, RouteRule and
                  # PathRule within this UrlMap.
                  #
                  # For example, consider a UrlMap with the
                  # following configuration:
                  #
                  #
                  #      - defaultCustomErrorResponsePolicy containing policies for
                  #      responding to 5xx and 4xx errors
                  #      - A PathMatcher configured for *.example.com has
                  #      defaultCustomErrorResponsePolicy for 4xx.
                  #
                  # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
                  # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
                  # a request that does not match any host in *.example.com such
                  # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
                  # takes effect.
                  #
                  # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
                  # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
                  # a retry, if load balancer is successful in reaching the
                  # service, the defaultCustomErrorResponsePolicy is ignored and
                  # the response from the service is returned to the client.
                  #
                  # defaultCustomErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "defaultRouteAction": { # defaultRouteAction takes effect when none of the
                  # hostRules match. The load balancer performs advanced routing
                  # actions, such as URL rewrites and header transformations, before forwarding
                  # the request to the selected backend.
                  #
                  #
                  # Only one of defaultUrlRedirect, defaultService
                  # or defaultRouteAction.weightedBackendService can be set.
                  #
                  #
                  #  URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within defaultRouteAction.
                  #
                  #
                  # defaultRouteAction has no effect when the URL map is bound
                  # to a target gRPC proxy that has the validateForProxyless field
                  # set to true.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "defaultService": "A String", # The full or partial URL of the defaultService resource to
                  # which traffic is directed if none of the hostRules match.
                  # If defaultRouteAction is also specified, advanced
                  # routing actions, such as URL rewrites, take effect before sending the
                  # request to the backend.
                  #
                  #
                  # Only one of defaultUrlRedirect, defaultService
                  # or defaultRouteAction.weightedBackendService can be set.
                  #
                  #
                  # defaultService has no effect when the URL map is bound
                  # to a target gRPC proxy that has the validateForProxyless field
                  # set to true.
              "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
                  # is redirected to a URL specified by defaultUrlRedirect.
                  #
                  #
                  # Only one of defaultUrlRedirect, defaultService
                  # or defaultRouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
              "description": "A String", # An optional description of this resource. Provide this property when you
                  # create the resource.
              "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
                  # This field is used in optimistic locking. This field is ignored when
                  # inserting a UrlMap. An up-to-date fingerprint must be provided
                  # in order to update the UrlMap, otherwise the request will
                  # fail with error 412 conditionNotMet.
                  #
                  # To see the latest fingerprint, make a get() request to
                  # retrieve a UrlMap.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                  # for the selected backendService.
                  #
                  # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
                  #
                  # headerAction is not supported for load balancers
                  # that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "hostRules": [ # The list of host rules to use against the URL.
                { # UrlMaps
                    # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
                  "description": "A String", # An optional description of this resource. Provide this property when you
                      # create the resource.
                  "hosts": [ # The list of host patterns to match. They must be valid hostnames with
                      # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
                      # that case, * must be the first character, and if followed by
                      # anything, the immediate following character must be either -
                      # or ..
                      #
                      # * based matching is not supported when the URL map is bound
                      # to a target gRPC proxy that has the validateForProxyless field
                      # set to true.
                    "A String",
                  ],
                  "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
                      # of the URL if the hostRule matches the URL's host portion.
                },
              ],
              "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
                  # defined by the server.
              "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
                  # url maps.
              "name": "A String", # Name of the resource. Provided by the client when the resource is created.
                  # The name must be 1-63 characters long, and comply withRFC1035.
                  # Specifically, the name must be 1-63 characters long and match the regular
                  # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
                  # character must be a lowercase letter, and all following characters must
                  # be a dash, lowercase letter, or digit, except the last character, which
                  # cannot be a dash.
              "pathMatchers": [ # The list of named PathMatchers to use against the URL.
                { # A matcher for the path portion of the URL. The BackendService
                    # from the longest-matched rule will serve the URL. If no rule was matched, the
                    # default service is used.
                  "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
                      # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                      #
                      # This policy takes
                      # effect at the PathMatcher level and applies only when no
                      # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
                      # in defaultCustomErrorResponsePolicy, then a policy defined for
                      # the error code in UrlMap.defaultCustomErrorResponsePolicy
                      # takes effect.
                      #
                      # For example, consider a UrlMap with the following
                      # configuration:
                      #
                      #
                      #      - UrlMap.defaultCustomErrorResponsePolicy is configured
                      #      with policies for 5xx and 4xx errors
                      #      - A RouteRule for /coming_soon/ is configured for the
                      #      error code 404.
                      #
                      # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                      # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                      # the policy in RouteRule.customErrorResponsePolicy takes
                      # effect. If any of the requests in this example encounter a 500
                      # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                      #
                      # When
                      # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
                      # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
                      # a retry, if load balancer is successful in reaching the
                      # service, the defaultCustomErrorResponsePolicy is ignored and
                      # the response from the service is returned to the client.
                      #
                      # defaultCustomErrorResponsePolicy is supported only for
                      # global external Application Load Balancers.
                      # backend service or backend bucket responds with an error.
                    "errorResponseRules": [ # Specifies rules for returning error responses.
                        #
                        # In a given policy, if you specify rules for both a range of error codes
                        # as well as rules for specific error codes then rules with specific error
                        # codes have a higher priority. For example, assume that you configure a rule
                        # for 401 (Un-authorized) code, and another for all 4 series
                        # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                        # However if the backend service returns a 403, the rule for4xx takes effect.
                      { # Specifies the mapping between the response code that will be returned along
                          # with the custom error content and the response code returned by the backend
                          # service.
                        "matchResponseCodes": [ # Valid values include:
                            #
                            #
                            #      - A number between 400 and 599: For example
                            #      401 or 503, in which case the load balancer
                            #      applies the policy if the error code exactly matches this value.
                            #      - 5xx: Load Balancer will apply the policy if the
                            #      backend service responds with any response code in the range of
                            #      500 to 599.
                            #    - 4xx: Load
                            #      Balancer will apply the policy if the backend service responds with any
                            #      response code in the range of 400 to
                            #      499.
                            #
                            # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                          "A String",
                        ],
                        "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                            # error content. If overrideResponseCode is not supplied, the
                            # same response code returned by the original backend bucket or backend
                            # service is returned to the client.
                        "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                            #
                            # path must start
                            # with a leading slash. path cannot have trailing slashes.
                            #
                            # If the file is not available in backendBucket  or the
                            # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                            #
                            # The value must
                            # be from 1 to 1024 characters
                      },
                    ],
                    "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                        # contains the custom error content. Examples are:
                        #
                        #
                        #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                        #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                        #      - global/backendBuckets/myBackendBucket
                        #
                        # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                        # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                        #
                        # If load balancer cannot reach
                        # the backendBucket, a simple Not Found Error will
                        # be returned, with the original response code (oroverrideResponseCode if configured).
                        #
                        # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                  },
                  "defaultRouteAction": { # defaultRouteAction takes effect when none of the
                      # pathRules or routeRules match. The load balancer
                      # performs advanced routing actions, such as URL rewrites and
                      # header transformations, before forwarding the request to the
                      # selected backend.
                      #
                      #
                      # Only one of defaultUrlRedirect, defaultService
                      # or defaultRouteAction.weightedBackendService can be set.
                      #
                      #
                      # URL maps for classic Application Load Balancers only support
                      # the urlRewrite action within a path matcher'sdefaultRouteAction.
                    "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                        # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                        # property must be specified. This policy cannot be specified if any target
                        # backend has Identity-Aware Proxy enabled.
                      "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                          # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                          # header names can be specified. The cache is bypassed for all `cacheMode`
                          # values.
                        "A String",
                      ],
                      "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                          # on the backend type: for Backend Services, the complete request URI is
                          # used; for Backend Buckets, the request URI is used without the protocol or
                          # host, and only query parameters known to Cloud Storage are included.
                          # Policy defined on Route Action.
                        "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                            # parameters will be included. Either specify `excludedQueryParameters`
                            # or `includedQueryParameters`, not both. '&' and '=' will be percent
                            # encoded and not treated as delimiters.
                            #
                            # Note: This field applies to routes that use backend services. Attempting
                            # to set it on a route that points exclusively to Backend Buckets will
                            # result in a configuration error. For routes that point to a Backend
                            # Bucket, use `includedQueryParameters` to define which parameters should
                            # be part of the cache key.
                          "A String",
                        ],
                        "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket, as the
                            # host is never included in a Backend Bucket's cache key. Attempting to set
                            # it on a route that points exclusively to Backend Buckets will result in a
                            # configuration error.
                        "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket, as the
                            # protocol is never included in a Backend Bucket's cache key. Attempting to
                            # set on a route that points exclusively to Backend Buckets will result in
                            # a configuration error.
                        "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                            # `includedQueryParameters` and `excludedQueryParameters`. If neither
                            # is set, the entire query string will be included. If false, the query
                            # string will be excluded from the cache key entirely.
                            #
                            # Note: This field applies to routes that use backend services. Attempting
                            # to set it on a route that points exclusively to Backend Buckets will
                            # result in a configuration error. For routes that point to a Backend
                            # Bucket, use `includedQueryParameters` to define which parameters should
                            # be part of the cache key.
                        "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                            # The name=value pair will be used in the cache key Cloud CDN generates.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket.
                            # Attempting to set it on a route that points exclusively to Backend
                            # Buckets will result in a configuration error. Up to 5 cookie names can be
                            # specified.
                          "A String",
                        ],
                        "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                          "A String",
                        ],
                        "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                            # parameters will be excluded. Either specify `includedQueryParameters`
                            # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                            # encoded and not treated as delimiters.
                          "A String",
                        ],
                      },
                      "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                          # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                      "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                          # content. This is used to clamp the max-age (or Expires) value sent to the
                          # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                          # is used for the response max-age directive, along with a "public"
                          # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                          # clamps the max-age from the origin (if specified), or else sets the
                          # response max-age directive to the lesser of the `clientTtl` and
                          # `defaultTtl`, and also ensures a "public" cache-control directive is
                          # present. The maximum allowed value is 31,622,400s (1 year). If not
                          # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                          # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                          # `USE_ORIGIN_HEADERS`.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                          # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                          # "always revalidate". The value of `defaultTtl` cannot be set to a value
                          # greater than that of `maxTtl`. When the `cacheMode` is set to
                          # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                          # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                          # accessed objects may be evicted from the cache before the defined TTL. If
                          # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                          # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                          # `USE_ORIGIN_HEADERS`.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                          # attempt to set a max-age or s-maxage higher than this, or an Expires header
                          # more than `maxTtl` seconds in the future will be capped at the value of
                          # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                          # Headers sent to the client will not be modified. Setting a TTL of "0" means
                          # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                          # Infrequently accessed objects may be evicted from the cache before the
                          # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                          # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                          # mode.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                          # to apply fine-grained caching for common errors or redirects.
                          # This can reduce the load on your origin and improve end-user
                          # experience by reducing response latency.
                          # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                          # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                          # the specified response code that lack any Cache-Control, Expires, or
                          # Pragma: no-cache directives. When the `cacheMode` is set to
                          # `FORCE_CACHE_ALL`, negative caching applies to all responses
                          # with the specified response code, and overrides any caching headers. By
                          # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                          #
                          # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                          # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                          # * 405 (Method Not Found), 501 (Not Implemented): 60s
                          #
                          # These defaults can be overridden in `negativeCachingPolicy`.
                          # If not specified, Cloud CDN applies negative caching by default.
                      "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                          # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                          # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                          # CDN's default cache TTLs. Note that when specifying an explicit
                          # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                          # all response codes that you wish to cache. Cloud CDN will not apply any
                          # default negative caching when a policy exists.
                        { # Specify CDN TTLs for response error codes.
                          "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                              # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                              # specified as values, and you cannot specify a status code more than
                              # once.
                          "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                              # corresponding status code.
                              # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                              # objects may be evicted from the cache before the defined TTL.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                        },
                      ],
                      "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                          # requests into a small number of requests to the origin. If not specified,
                          # Cloud CDN applies request coalescing by default.
                      "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                          # content with the origin, or when an error is encountered when refreshing
                          # the cache.
                          # This setting defines the default "max-stale" duration for any cached
                          # responses that do not specify a max-stale directive. Stale responses that
                          # exceed the TTL configured here will not be served. The default limit
                          # (max-stale) is 86400s (1 day), which will allow stale content to be
                          # served up to this limit beyond the max-age (or s-maxage) of a cached
                          # response.
                          # The maximum allowed value is 604800 (1 week).
                          # Set this to zero (0) to disable serve-while-stale.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                    "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                        # information about the W3C recommendation for cross-origin resource sharing
                        # (CORS), see Fetch API Living
                        # Standard.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy.
                        # information about the W3C recommendation for cross-origin resource sharing
                        # (CORS), see Fetch API Living
                        # Standard.
                      "allowCredentials": True or False, # In response to a preflight request, setting this to true
                          # indicates that
                          # the actual request can include user credentials. This field translates to
                          # the Access-Control-Allow-Credentials header.
                          #
                          # Default is false.
                      "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                          # header.
                        "A String",
                      ],
                      "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                          # header.
                        "A String",
                      ],
                      "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                          # more information, see regular expression syntax.
                          #
                          # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED.
                        "A String",
                      ],
                      "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                          #
                          # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                        "A String",
                      ],
                      "disabled": True or False, # If true, disables the CORS policy.
                          # The default value is false, which indicates that the CORS
                          # policy is in effect.
                      "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                          # header.
                        "A String",
                      ],
                      "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                          # seconds. This field translates to the Access-Control-Max-Age
                          # header.
                    },
                    "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                        # the resiliency of clients to backend service failure. As part of fault
                        # injection, when clients send requests to a backend service, delays can be
                        # introduced by a load balancer on a percentage of requests before sending
                        # those requests to the backend service. Similarly requests from clients can
                        # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                        # that are configured with a fault_injection_policy if:
                        # 1. The traffic is generated by fault injection AND
                        # 2. The fault injection is not a delay fault injection.
                        # Fault injection is not supported with the classic Application Load Balancer
                        # . To see which load balancers support fault injection,
                        # see Load
                        # balancing: Routing and traffic management features.
                        # the resiliency of clients to backend service failure. As part of fault
                        # injection, when clients send requests to a backend service, delays can be
                        # introduced by the load balancer on a percentage of requests before sending
                        # those request to the backend service. Similarly requests from clients can be
                        # aborted by the load balancer for a percentage of requests.
                      "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                          # injection.
                        "httpStatus": 42, # The HTTP status code used to abort the request.
                            #
                            # The value must be from 200 to 599 inclusive.
                            #
                            # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                            # according to this
                            # mapping table. HTTP status 200 is mapped to gRPC status
                            # UNKNOWN. Injecting an OK status is currently not supported by
                            # Traffic Director.
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                            # that is aborted as part of fault injection.
                            #
                            # The value must be from 0.0 to 100.0 inclusive.
                      },
                      "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                          # injection, before being sent to a backend service.
                          # request to the backend service as part of fault injection.
                        "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                            # which a delay is introduced as part of fault injection.
                            #
                            # The value must be from 0.0 to 100.0 inclusive.
                      },
                    },
                    "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                        # Global EXTERNAL_MANAGED load balancer schemes.
                        # Either Cloud CDN must be enabled on the backend service or backend bucket
                        # serving the route, or cache policy must be configured on the same route
                        # dynamically processes and delivers images from the network edge.
                        # Image Optimization is only available for Global External Application Load
                        # Balancers.
                        # Either Cloud CDN must be enabled on the backend service or backend bucket
                        # serving the route, or cache policy must be configured on the same route.
                      "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                    },
                    "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                        # Unlike the timeout field where the timeout duration starts
                        # from the time the request has been fully processed (known as*end-of-stream*),
                        # the duration in this field is computed from the beginning of the stream
                        # until the response has been processed, including all retries. A
                        # stream that does not complete in this duration is closed.
                        #
                        # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                        # with the route.
                        #
                        # This field is only allowed if the Url map is used with backend services
                        # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                        # are shadowed to a separate mirrored backend service. The load balancer does
                        # not wait for responses from the shadow service. Before sending traffic
                        # to the shadow service, the host / authority header is suffixed with-shadow.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # are shadowed to a separate mirrored backend service. The load balancer
                        # doesn't wait for responses from the shadow service. Before sending traffic
                        # to the shadow service, the host or authority header is suffixed with-shadow.
                      "backendService": "A String", # The full or partial URL to the BackendService resource being
                          # mirrored to.
                          #
                          # The backend service configured for a mirroring
                          # policy must reference backends that are of the same type as the original
                          # backend service matched in the URL map.
                          #
                          # Serverless NEG backends are not currently supported as a mirrored
                          # backend service.
                      "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                    },
                    "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                      "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                          # If not specified, defaults to 1.
                      "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                          #
                          # If not specified, will use the timeout set in theHttpRouteAction field.
                          # If timeout in the HttpRouteAction field is not set, this field
                          # uses the largest timeout
                          # among all backend services associated with the route.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has the validateForProxyless field set to true.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                          # values are:
                          #
                          #    - 5xx: retry is attempted if the instance or endpoint
                          #    responds with any 5xx response code, or if the instance or
                          #    endpoint does not respond at all. For example, disconnects, reset, read
                          #    timeout, connection failure, and refused streams.
                          #    - gateway-error: Similar to 5xx, but only
                          #    applies to response codes 502, 503 or504.
                          #    - connect-failure: a retry is attempted on failures
                          #    connecting to the instance or endpoint. For example, connection
                          #    timeouts.
                          #    - retriable-4xx: a retry is attempted if the instance
                          #    or endpoint responds with a 4xx response code.
                          #    The only error that you can retry is error code 409.
                          #    - refused-stream: a retry is attempted if the instance
                          #    or endpoint resets the stream with a REFUSED_STREAM error
                          #    code. This reset type indicates that it is safe to retry.
                          #    - cancelled: a retry is attempted if the gRPC status
                          #    code in the response header is set to cancelled.
                          #    - deadline-exceeded: a retry is attempted if the gRPC
                          #    status code in the response header is set todeadline-exceeded.
                          #    - internal: a retry is attempted if the gRPC
                          #    status code in the response header is set tointernal.
                          #    - resource-exhausted: a retry is attempted if the gRPC
                          #    status code in the response header is set toresource-exhausted.
                          #    - unavailable: a retry is attempted if the gRPC
                          #    status code in the response header is set tounavailable.
                          #
                          # Only the following codes are supported when the URL map is bound to
                          # target gRPC proxy that has validateForProxyless field set to true.
                          #
                          #    - cancelled
                          #    - deadline-exceeded
                          #    - internal
                          #    - resource-exhausted
                          #    - unavailable
                        "A String",
                      ],
                    },
                    "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                        # time the request has been fully processed (known as *end-of-stream*)
                        # up until the response has been processed. Timeout includes
                        # all retries.
                        #
                        # If not specified, this field uses the largest timeout among all backend
                        # services associated with the route.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                        # to the matched service.
                        #
                        #  urlRewrite is the only action supported in UrlMaps
                        # for classic Application Load Balancers.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # backend service.
                      "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                          # host header is replaced with contents of hostRewrite.
                          #
                          # The value must be from 1 to 255 characters.
                      "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                          # matching portion of the request's path is replaced bypathPrefixRewrite.
                          #
                          # The value must be from 1 to 1024 characters.
                      "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                          # header) using the HTTP template syntax.
                          #
                          # A corresponding
                          # path_template_match must be specified. Any template variables must exist in
                          # the path_template_match field.
                          #
                          #
                          #       - -At least one variable must be specified in the path_template_match
                          #       field
                          #    - You can omit variables from the rewritten URL
                          #       - The * and ** operators cannot be matched
                          #       unless they have a corresponding variable name - e.g.
                          #       {format=*} or {var=**}.
                          #
                          # For example, a path_template_match of /static/{format=**}
                          # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                          # rewrite, so that /{country}/{format}/{suffix=**} can be
                          # rewritten as /content/{format}/{country}/{suffix}.
                          #
                          # At least
                          # one non-empty routeRules[].matchRules[].path_template_match is
                          # required.
                          #
                          # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                      "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                        "pathPattern": "A String", # The regular expression used to match against the URL path.
                            # It uses RE2 syntax with the following constraints:
                            #
                            #
                            #      - Any single character operators
                            #      - Groups are allowed to have only submatch operator inside
                            #      - Groups are allowed only without any char repetition, e.g.
                            #      .*
                            #      - Any char repetition, e.g. .*, is
                            #      only allowed to be used in a single regex together with:
                            #
                            #
                            #             - Empty string operators
                            #             - Other repetitions
                            #             - Ranges
                            #             - Repetitions of ranges
                            #
                            #
                            #      - Ranges are only allowed to have:
                            #
                            #
                            #             - Character range
                            #             - Digits range
                            #             - Symbols listed in characters allowed for ranges
                        "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                            # the path.
                      },
                    },
                    "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                        # occurs. The weights determine the fraction of traffic that flows to
                        # their corresponding backend service. If all traffic needs to
                        # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                        #
                        # After a backend service is identified and before forwarding
                        # the request to
                        # the backend service, advanced routing actions such as URL rewrites and
                        # header transformations are applied depending on additional settings
                        # specified in this HttpRouteAction.
                      { # In contrast to a single BackendService in
                          # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                          # multiple backend services. The volume of traffic for each
                          # backend service is proportional to the weight specified
                          # in each WeightedBackendService
                        "backendService": "A String", # The full or partial URL to the default BackendService
                            # resource. Before
                            # forwarding the request to backendService, the load balancer
                            # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                        "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                            # effect for the selected backendService.
                            #
                            # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                            #
                            # headerAction is not supported for load balancers that have
                            # their loadBalancingScheme set to EXTERNAL.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has validateForProxyless field set to true.
                            # the request is passed along to the selected backendService.
                          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values
                                  # that already
                                  # exist for the header. If true, headerValue is set for the
                                  # header, discarding any values that were set for that header.
                                  #
                                  # The default value is true,
                                  # unless a variable is present in headerValue,
                                  # in which case the default value is false.
                                  # .
                            },
                          ],
                          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                              # request before forwarding the request to the backendService.
                            "A String",
                          ],
                          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                              # client.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values
                                  # that already
                                  # exist for the header. If true, headerValue is set for the
                                  # header, discarding any values that were set for that header.
                                  #
                                  # The default value is true,
                                  # unless a variable is present in headerValue,
                                  # in which case the default value is false.
                                  # .
                            },
                          ],
                          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                              # response before sending the response back to the client.
                            "A String",
                          ],
                        },
                        "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                            # computed asweight / (sum of all weightedBackendService weights in routeAction).
                            #
                            # The selection of a backend service is determined only for new traffic.
                            # Once a user's request has been directed to a backend service,
                            # subsequent requests are sent to the same backend service as
                            # determined by the backend service's session affinity policy.
                            # Don't configure session affinity if you're using weighted traffic
                            # splitting. If you do, the weighted traffic splitting configuration takes
                            # precedence.
                            #
                            # The value must be from 0 to 1000.
                      },
                    ],
                  },
                  "defaultService": "A String", # The full or partial URL to the BackendService resource. This
                      # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
                      # matched. For example, the
                      # following are all valid URLs to a BackendService resource:
                      #
                      #
                      #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
                      #      - compute/v1/projects/project/global/backendServices/backendService
                      #      - global/backendServices/backendService
                      #
                      #
                      # If defaultRouteAction is also specified, advanced
                      # routing actions, such as URL rewrites, take effect before sending the
                      # request to the backend.
                      #
                      #
                      # Only one of defaultUrlRedirect, defaultService
                      # or defaultRouteAction.weightedBackendService can be set.
                      #
                      #
                      # Authorization requires one or more of the following Google IAM permissions on the
                      # specified resource default_service:
                      #
                      #
                      #       - compute.backendBuckets.use
                      #       - compute.backendServices.use
                  "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
                      # by defaultUrlRedirect.
                      #
                      #
                      # Only one of defaultUrlRedirect, defaultService
                      # or defaultRouteAction.weightedBackendService can be set.
                      #
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                        # was supplied in the request.
                        #
                        # The value must be from 1 to 255
                        # characters.
                    "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                        # set to HTTPS.
                        # If set to false, the URL scheme of the redirected request
                        # remains the same as that of the request.
                        #
                        # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                        #
                        # The default is set to false.
                    "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                        # that was supplied in the request.
                        #
                        # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                        # supplied, the path of the original request is used for the redirect.
                        #
                        # The value must be from 1 to 1024 characters.
                    "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                        # the HttpRouteRuleMatch, retaining the remaining portion
                        # of the URL before redirecting the request.
                        #
                        # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                        # supplied, the path of the original request is used for the redirect.
                        #
                        # The value must be from 1 to 1024 characters.
                    "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                        #
                        # Supported values are:
                        #
                        #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                        #    to 301.
                        #    - FOUND, which corresponds to 302.
                        #    - SEE_OTHER which corresponds to 303.
                        #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                        #    method is retained.
                        #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                        #    method is retained.
                    "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                        # URL is
                        # removed before redirecting the request. If set to false, the
                        # query portion of the original URL is retained.
                        #
                        # The default is set to false.
                  },
                  "description": "A String", # An optional description of this resource. Provide this property when you
                      # create the resource.
                  "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                      # for the selected backend service.
                      #
                      # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
                      #
                      # HeaderAction is not supported for load balancers
                      # that have
                      # their loadBalancingScheme set to EXTERNAL.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                      # the request is passed along to the selected backendService.
                    "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values
                            # that already
                            # exist for the header. If true, headerValue is set for the
                            # header, discarding any values that were set for that header.
                            #
                            # The default value is true,
                            # unless a variable is present in headerValue,
                            # in which case the default value is false.
                            # .
                      },
                    ],
                    "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                        # request before forwarding the request to the backendService.
                      "A String",
                    ],
                    "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                        # client.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values
                            # that already
                            # exist for the header. If true, headerValue is set for the
                            # header, discarding any values that were set for that header.
                            #
                            # The default value is true,
                            # unless a variable is present in headerValue,
                            # in which case the default value is false.
                            # .
                      },
                    ],
                    "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                        # response before sending the response back to the client.
                      "A String",
                    ],
                  },
                  "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
                  "pathRules": [ # The list of path rules. Use this list instead of routeRules
                      # when routing based on simple path matching is all that's required. A path
                      # rule can only include a wildcard character (*) after a
                      # forward slash character ("/").
                      #
                      # The order by which path rules are specified does not matter.
                      # Matches are always done on the longest-path-first basis.
                      #
                      # For example: a pathRule with a path /a/b/c/* will match
                      # before /a/b/* irrespective of the order in which those paths appear in this
                      # list.
                      #
                      # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
                    { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
                      "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                          # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                          #
                          # If a policy for an
                          # error code is not configured for the PathRule, a policy for
                          # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                          # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                          # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                          # effect.
                          #
                          # For example, consider a UrlMap with the following configuration:
                          #
                          #
                          #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                          #      with policies for 5xx and 4xx errors
                          #      - A PathRule for /coming_soon/ is configured for the error
                          #      code 404.
                          #
                          # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                          # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                          # the policy in PathRule.customErrorResponsePolicy takes
                          # effect. If any of the requests in this example encounter a 500
                          # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                          #
                          # customErrorResponsePolicy is supported only for
                          # global external Application Load Balancers.
                          # backend service or backend bucket responds with an error.
                        "errorResponseRules": [ # Specifies rules for returning error responses.
                            #
                            # In a given policy, if you specify rules for both a range of error codes
                            # as well as rules for specific error codes then rules with specific error
                            # codes have a higher priority. For example, assume that you configure a rule
                            # for 401 (Un-authorized) code, and another for all 4 series
                            # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                            # However if the backend service returns a 403, the rule for4xx takes effect.
                          { # Specifies the mapping between the response code that will be returned along
                              # with the custom error content and the response code returned by the backend
                              # service.
                            "matchResponseCodes": [ # Valid values include:
                                #
                                #
                                #      - A number between 400 and 599: For example
                                #      401 or 503, in which case the load balancer
                                #      applies the policy if the error code exactly matches this value.
                                #      - 5xx: Load Balancer will apply the policy if the
                                #      backend service responds with any response code in the range of
                                #      500 to 599.
                                #    - 4xx: Load
                                #      Balancer will apply the policy if the backend service responds with any
                                #      response code in the range of 400 to
                                #      499.
                                #
                                # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                              "A String",
                            ],
                            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                                # error content. If overrideResponseCode is not supplied, the
                                # same response code returned by the original backend bucket or backend
                                # service is returned to the client.
                            "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                                #
                                # path must start
                                # with a leading slash. path cannot have trailing slashes.
                                #
                                # If the file is not available in backendBucket  or the
                                # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                                #
                                # The value must
                                # be from 1 to 1024 characters
                          },
                        ],
                        "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                            # contains the custom error content. Examples are:
                            #
                            #
                            #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                            #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                            #      - global/backendBuckets/myBackendBucket
                            #
                            # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                            # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                            #
                            # If load balancer cannot reach
                            # the backendBucket, a simple Not Found Error will
                            # be returned, with the original response code (oroverrideResponseCode if configured).
                            #
                            # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                      },
                      "paths": [ # The list of path patterns to match. Each must start with /
                          # and the only place a * is allowed is at the end following
                          # a /.  The string fed to the path matcher does not include
                          # any text after the first ? or #, and
                          # those chars are not allowed here.
                        "A String",
                      ],
                      "routeAction": { # In response to a matching path, the load balancer
                          # performs advanced routing actions, such as URL rewrites and header
                          # transformations, before forwarding the request to the selected
                          # backend.
                          #
                          #
                          # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                          #
                          #
                          # URL maps for classic Application Load Balancers only support
                          # the urlRewrite action within a path rule'srouteAction.
                        "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                            # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                            # property must be specified. This policy cannot be specified if any target
                            # backend has Identity-Aware Proxy enabled.
                          "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                              # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                              # header names can be specified. The cache is bypassed for all `cacheMode`
                              # values.
                            "A String",
                          ],
                          "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                              # on the backend type: for Backend Services, the complete request URI is
                              # used; for Backend Buckets, the request URI is used without the protocol or
                              # host, and only query parameters known to Cloud Storage are included.
                              # Policy defined on Route Action.
                            "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                                # parameters will be included. Either specify `excludedQueryParameters`
                                # or `includedQueryParameters`, not both. '&' and '=' will be percent
                                # encoded and not treated as delimiters.
                                #
                                # Note: This field applies to routes that use backend services. Attempting
                                # to set it on a route that points exclusively to Backend Buckets will
                                # result in a configuration error. For routes that point to a Backend
                                # Bucket, use `includedQueryParameters` to define which parameters should
                                # be part of the cache key.
                              "A String",
                            ],
                            "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                                #
                                # Note: This setting is only applicable to routes that use a Backend
                                # Service. It does not affect requests served by a Backend Bucket, as the
                                # host is never included in a Backend Bucket's cache key. Attempting to set
                                # it on a route that points exclusively to Backend Buckets will result in a
                                # configuration error.
                            "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                                #
                                # Note: This setting is only applicable to routes that use a Backend
                                # Service. It does not affect requests served by a Backend Bucket, as the
                                # protocol is never included in a Backend Bucket's cache key. Attempting to
                                # set on a route that points exclusively to Backend Buckets will result in
                                # a configuration error.
                            "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                                # `includedQueryParameters` and `excludedQueryParameters`. If neither
                                # is set, the entire query string will be included. If false, the query
                                # string will be excluded from the cache key entirely.
                                #
                                # Note: This field applies to routes that use backend services. Attempting
                                # to set it on a route that points exclusively to Backend Buckets will
                                # result in a configuration error. For routes that point to a Backend
                                # Bucket, use `includedQueryParameters` to define which parameters should
                                # be part of the cache key.
                            "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                                # The name=value pair will be used in the cache key Cloud CDN generates.
                                #
                                # Note: This setting is only applicable to routes that use a Backend
                                # Service. It does not affect requests served by a Backend Bucket.
                                # Attempting to set it on a route that points exclusively to Backend
                                # Buckets will result in a configuration error. Up to 5 cookie names can be
                                # specified.
                              "A String",
                            ],
                            "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                              "A String",
                            ],
                            "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                                # parameters will be excluded. Either specify `includedQueryParameters`
                                # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                                # encoded and not treated as delimiters.
                              "A String",
                            ],
                          },
                          "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                              # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                          "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                              # content. This is used to clamp the max-age (or Expires) value sent to the
                              # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                              # is used for the response max-age directive, along with a "public"
                              # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                              # clamps the max-age from the origin (if specified), or else sets the
                              # response max-age directive to the lesser of the `clientTtl` and
                              # `defaultTtl`, and also ensures a "public" cache-control directive is
                              # present. The maximum allowed value is 31,622,400s (1 year). If not
                              # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                              # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                              # `USE_ORIGIN_HEADERS`.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                              # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                              # "always revalidate". The value of `defaultTtl` cannot be set to a value
                              # greater than that of `maxTtl`. When the `cacheMode` is set to
                              # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                              # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                              # accessed objects may be evicted from the cache before the defined TTL. If
                              # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                              # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                              # `USE_ORIGIN_HEADERS`.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                              # attempt to set a max-age or s-maxage higher than this, or an Expires header
                              # more than `maxTtl` seconds in the future will be capped at the value of
                              # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                              # Headers sent to the client will not be modified. Setting a TTL of "0" means
                              # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                              # Infrequently accessed objects may be evicted from the cache before the
                              # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                              # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                              # mode.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                              # to apply fine-grained caching for common errors or redirects.
                              # This can reduce the load on your origin and improve end-user
                              # experience by reducing response latency.
                              # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                              # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                              # the specified response code that lack any Cache-Control, Expires, or
                              # Pragma: no-cache directives. When the `cacheMode` is set to
                              # `FORCE_CACHE_ALL`, negative caching applies to all responses
                              # with the specified response code, and overrides any caching headers. By
                              # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                              #
                              # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                              # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                              # * 405 (Method Not Found), 501 (Not Implemented): 60s
                              #
                              # These defaults can be overridden in `negativeCachingPolicy`.
                              # If not specified, Cloud CDN applies negative caching by default.
                          "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                              # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                              # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                              # CDN's default cache TTLs. Note that when specifying an explicit
                              # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                              # all response codes that you wish to cache. Cloud CDN will not apply any
                              # default negative caching when a policy exists.
                            { # Specify CDN TTLs for response error codes.
                              "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                                  # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                                  # specified as values, and you cannot specify a status code more than
                                  # once.
                              "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                                  # corresponding status code.
                                  # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                                  # objects may be evicted from the cache before the defined TTL.
                                  # as a count of seconds and fractions of seconds at nanosecond
                                  # resolution. It is independent of any calendar and concepts like "day"
                                  # or "month". Range is approximately 10,000 years.
                                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                    # Durations less than one second are represented with a 0
                                    # `seconds` field and a positive `nanos` field. Must be from 0
                                    # to 999,999,999 inclusive.
                                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                              },
                            },
                          ],
                          "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                              # requests into a small number of requests to the origin. If not specified,
                              # Cloud CDN applies request coalescing by default.
                          "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                              # content with the origin, or when an error is encountered when refreshing
                              # the cache.
                              # This setting defines the default "max-stale" duration for any cached
                              # responses that do not specify a max-stale directive. Stale responses that
                              # exceed the TTL configured here will not be served. The default limit
                              # (max-stale) is 86400s (1 day), which will allow stale content to be
                              # served up to this limit beyond the max-age (or s-maxage) of a cached
                              # response.
                              # The maximum allowed value is 604800 (1 week).
                              # Set this to zero (0) to disable serve-while-stale.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                        },
                        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                            # information about the W3C recommendation for cross-origin resource sharing
                            # (CORS), see Fetch API Living
                            # Standard.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy.
                            # information about the W3C recommendation for cross-origin resource sharing
                            # (CORS), see Fetch API Living
                            # Standard.
                          "allowCredentials": True or False, # In response to a preflight request, setting this to true
                              # indicates that
                              # the actual request can include user credentials. This field translates to
                              # the Access-Control-Allow-Credentials header.
                              #
                              # Default is false.
                          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                              # header.
                            "A String",
                          ],
                          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                              # header.
                            "A String",
                          ],
                          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                              # more information, see regular expression syntax.
                              #
                              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                              #
                              # Regular expressions can only be used when the loadBalancingScheme is
                              # set to INTERNAL_SELF_MANAGED.
                            "A String",
                          ],
                          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                              #
                              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                            "A String",
                          ],
                          "disabled": True or False, # If true, disables the CORS policy.
                              # The default value is false, which indicates that the CORS
                              # policy is in effect.
                          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                              # header.
                            "A String",
                          ],
                          "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                              # seconds. This field translates to the Access-Control-Max-Age
                              # header.
                        },
                        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                            # the resiliency of clients to backend service failure. As part of fault
                            # injection, when clients send requests to a backend service, delays can be
                            # introduced by a load balancer on a percentage of requests before sending
                            # those requests to the backend service. Similarly requests from clients can
                            # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                            # that are configured with a fault_injection_policy if:
                            # 1. The traffic is generated by fault injection AND
                            # 2. The fault injection is not a delay fault injection.
                            # Fault injection is not supported with the classic Application Load Balancer
                            # . To see which load balancers support fault injection,
                            # see Load
                            # balancing: Routing and traffic management features.
                            # the resiliency of clients to backend service failure. As part of fault
                            # injection, when clients send requests to a backend service, delays can be
                            # introduced by the load balancer on a percentage of requests before sending
                            # those request to the backend service. Similarly requests from clients can be
                            # aborted by the load balancer for a percentage of requests.
                          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                              # injection.
                            "httpStatus": 42, # The HTTP status code used to abort the request.
                                #
                                # The value must be from 200 to 599 inclusive.
                                #
                                # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                                # according to this
                                # mapping table. HTTP status 200 is mapped to gRPC status
                                # UNKNOWN. Injecting an OK status is currently not supported by
                                # Traffic Director.
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                                # that is aborted as part of fault injection.
                                #
                                # The value must be from 0.0 to 100.0 inclusive.
                          },
                          "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                              # injection, before being sent to a backend service.
                              # request to the backend service as part of fault injection.
                            "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                                # as a count of seconds and fractions of seconds at nanosecond
                                # resolution. It is independent of any calendar and concepts like "day"
                                # or "month". Range is approximately 10,000 years.
                              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                  # Durations less than one second are represented with a 0
                                  # `seconds` field and a positive `nanos` field. Must be from 0
                                  # to 999,999,999 inclusive.
                              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                            },
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                                # which a delay is introduced as part of fault injection.
                                #
                                # The value must be from 0.0 to 100.0 inclusive.
                          },
                        },
                        "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                            # Global EXTERNAL_MANAGED load balancer schemes.
                            # Either Cloud CDN must be enabled on the backend service or backend bucket
                            # serving the route, or cache policy must be configured on the same route
                            # dynamically processes and delivers images from the network edge.
                            # Image Optimization is only available for Global External Application Load
                            # Balancers.
                            # Either Cloud CDN must be enabled on the backend service or backend bucket
                            # serving the route, or cache policy must be configured on the same route.
                          "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                        },
                        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                            # Unlike the timeout field where the timeout duration starts
                            # from the time the request has been fully processed (known as*end-of-stream*),
                            # the duration in this field is computed from the beginning of the stream
                            # until the response has been processed, including all retries. A
                            # stream that does not complete in this duration is closed.
                            #
                            # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                            # with the route.
                            #
                            # This field is only allowed if the Url map is used with backend services
                            # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                            # are shadowed to a separate mirrored backend service. The load balancer does
                            # not wait for responses from the shadow service. Before sending traffic
                            # to the shadow service, the host / authority header is suffixed with-shadow.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has the validateForProxyless field set to true.
                            # are shadowed to a separate mirrored backend service. The load balancer
                            # doesn't wait for responses from the shadow service. Before sending traffic
                            # to the shadow service, the host or authority header is suffixed with-shadow.
                          "backendService": "A String", # The full or partial URL to the BackendService resource being
                              # mirrored to.
                              #
                              # The backend service configured for a mirroring
                              # policy must reference backends that are of the same type as the original
                              # backend service matched in the URL map.
                              #
                              # Serverless NEG backends are not currently supported as a mirrored
                              # backend service.
                          "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                        },
                        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                              # If not specified, defaults to 1.
                          "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                              #
                              # If not specified, will use the timeout set in theHttpRouteAction field.
                              # If timeout in the HttpRouteAction field is not set, this field
                              # uses the largest timeout
                              # among all backend services associated with the route.
                              #
                              # Not supported when the URL map is bound to a target gRPC proxy that
                              # has the validateForProxyless field set to true.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                              # values are:
                              #
                              #    - 5xx: retry is attempted if the instance or endpoint
                              #    responds with any 5xx response code, or if the instance or
                              #    endpoint does not respond at all. For example, disconnects, reset, read
                              #    timeout, connection failure, and refused streams.
                              #    - gateway-error: Similar to 5xx, but only
                              #    applies to response codes 502, 503 or504.
                              #    - connect-failure: a retry is attempted on failures
                              #    connecting to the instance or endpoint. For example, connection
                              #    timeouts.
                              #    - retriable-4xx: a retry is attempted if the instance
                              #    or endpoint responds with a 4xx response code.
                              #    The only error that you can retry is error code 409.
                              #    - refused-stream: a retry is attempted if the instance
                              #    or endpoint resets the stream with a REFUSED_STREAM error
                              #    code. This reset type indicates that it is safe to retry.
                              #    - cancelled: a retry is attempted if the gRPC status
                              #    code in the response header is set to cancelled.
                              #    - deadline-exceeded: a retry is attempted if the gRPC
                              #    status code in the response header is set todeadline-exceeded.
                              #    - internal: a retry is attempted if the gRPC
                              #    status code in the response header is set tointernal.
                              #    - resource-exhausted: a retry is attempted if the gRPC
                              #    status code in the response header is set toresource-exhausted.
                              #    - unavailable: a retry is attempted if the gRPC
                              #    status code in the response header is set tounavailable.
                              #
                              # Only the following codes are supported when the URL map is bound to
                              # target gRPC proxy that has validateForProxyless field set to true.
                              #
                              #    - cancelled
                              #    - deadline-exceeded
                              #    - internal
                              #    - resource-exhausted
                              #    - unavailable
                            "A String",
                          ],
                        },
                        "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                            # time the request has been fully processed (known as *end-of-stream*)
                            # up until the response has been processed. Timeout includes
                            # all retries.
                            #
                            # If not specified, this field uses the largest timeout among all backend
                            # services associated with the route.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has validateForProxyless field set to true.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                            # to the matched service.
                            #
                            #  urlRewrite is the only action supported in UrlMaps
                            # for classic Application Load Balancers.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has the validateForProxyless field set to true.
                            # backend service.
                          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                              # host header is replaced with contents of hostRewrite.
                              #
                              # The value must be from 1 to 255 characters.
                          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                              # matching portion of the request's path is replaced bypathPrefixRewrite.
                              #
                              # The value must be from 1 to 1024 characters.
                          "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                              # header) using the HTTP template syntax.
                              #
                              # A corresponding
                              # path_template_match must be specified. Any template variables must exist in
                              # the path_template_match field.
                              #
                              #
                              #       - -At least one variable must be specified in the path_template_match
                              #       field
                              #    - You can omit variables from the rewritten URL
                              #       - The * and ** operators cannot be matched
                              #       unless they have a corresponding variable name - e.g.
                              #       {format=*} or {var=**}.
                              #
                              # For example, a path_template_match of /static/{format=**}
                              # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                              # rewrite, so that /{country}/{format}/{suffix=**} can be
                              # rewritten as /content/{format}/{country}/{suffix}.
                              #
                              # At least
                              # one non-empty routeRules[].matchRules[].path_template_match is
                              # required.
                              #
                              # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                          "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                            "pathPattern": "A String", # The regular expression used to match against the URL path.
                                # It uses RE2 syntax with the following constraints:
                                #
                                #
                                #      - Any single character operators
                                #      - Groups are allowed to have only submatch operator inside
                                #      - Groups are allowed only without any char repetition, e.g.
                                #      .*
                                #      - Any char repetition, e.g. .*, is
                                #      only allowed to be used in a single regex together with:
                                #
                                #
                                #             - Empty string operators
                                #             - Other repetitions
                                #             - Ranges
                                #             - Repetitions of ranges
                                #
                                #
                                #      - Ranges are only allowed to have:
                                #
                                #
                                #             - Character range
                                #             - Digits range
                                #             - Symbols listed in characters allowed for ranges
                            "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                                # the path.
                          },
                        },
                        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                            # occurs. The weights determine the fraction of traffic that flows to
                            # their corresponding backend service. If all traffic needs to
                            # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                            #
                            # After a backend service is identified and before forwarding
                            # the request to
                            # the backend service, advanced routing actions such as URL rewrites and
                            # header transformations are applied depending on additional settings
                            # specified in this HttpRouteAction.
                          { # In contrast to a single BackendService in
                              # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                              # multiple backend services. The volume of traffic for each
                              # backend service is proportional to the weight specified
                              # in each WeightedBackendService
                            "backendService": "A String", # The full or partial URL to the default BackendService
                                # resource. Before
                                # forwarding the request to backendService, the load balancer
                                # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                                # effect for the selected backendService.
                                #
                                # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                                #
                                # headerAction is not supported for load balancers that have
                                # their loadBalancingScheme set to EXTERNAL.
                                #
                                # Not supported when the URL map is bound to a target gRPC proxy that
                                # has validateForProxyless field set to true.
                                # the request is passed along to the selected backendService.
                              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values
                                      # that already
                                      # exist for the header. If true, headerValue is set for the
                                      # header, discarding any values that were set for that header.
                                      #
                                      # The default value is true,
                                      # unless a variable is present in headerValue,
                                      # in which case the default value is false.
                                      # .
                                },
                              ],
                              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                                  # request before forwarding the request to the backendService.
                                "A String",
                              ],
                              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                                  # client.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values
                                      # that already
                                      # exist for the header. If true, headerValue is set for the
                                      # header, discarding any values that were set for that header.
                                      #
                                      # The default value is true,
                                      # unless a variable is present in headerValue,
                                      # in which case the default value is false.
                                      # .
                                },
                              ],
                              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                                  # response before sending the response back to the client.
                                "A String",
                              ],
                            },
                            "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                                # computed asweight / (sum of all weightedBackendService weights in routeAction).
                                #
                                # The selection of a backend service is determined only for new traffic.
                                # Once a user's request has been directed to a backend service,
                                # subsequent requests are sent to the same backend service as
                                # determined by the backend service's session affinity policy.
                                # Don't configure session affinity if you're using weighted traffic
                                # splitting. If you do, the weighted traffic splitting configuration takes
                                # precedence.
                                #
                                # The value must be from 0 to 1000.
                          },
                        ],
                      },
                      "service": "A String", # The full or partial URL of the backend service resource to which traffic
                          # is directed if this rule is matched. If routeAction is
                          # also specified, advanced routing actions, such as URL rewrites,
                          # take effect before sending the request to the backend.
                          #
                          #
                          # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                      "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                          # specified by urlRedirect.
                          #
                          #
                          # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                          #
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy.
                        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                            # was supplied in the request.
                            #
                            # The value must be from 1 to 255
                            # characters.
                        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                            # set to HTTPS.
                            # If set to false, the URL scheme of the redirected request
                            # remains the same as that of the request.
                            #
                            # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                            #
                            # The default is set to false.
                        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                            # that was supplied in the request.
                            #
                            # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                            # supplied, the path of the original request is used for the redirect.
                            #
                            # The value must be from 1 to 1024 characters.
                        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                            # the HttpRouteRuleMatch, retaining the remaining portion
                            # of the URL before redirecting the request.
                            #
                            # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                            # supplied, the path of the original request is used for the redirect.
                            #
                            # The value must be from 1 to 1024 characters.
                        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                            #
                            # Supported values are:
                            #
                            #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                            #    to 301.
                            #    - FOUND, which corresponds to 302.
                            #    - SEE_OTHER which corresponds to 303.
                            #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                            #    method is retained.
                            #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                            #    method is retained.
                        "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                            # URL is
                            # removed before redirecting the request. If set to false, the
                            # query portion of the original URL is retained.
                            #
                            # The default is set to false.
                      },
                    },
                  ],
                  "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
                      # desired. routeRules are evaluated in order of priority, from
                      # the lowest to highest number.
                      #
                      # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
                    { # The HttpRouteRule setting specifies how to match an HTTP request
                        # and the corresponding routing action that load balancing proxies perform.
                      "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                          # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                          #
                          # If a policy for an
                          # error code is not configured for the RouteRule, a policy for
                          # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                          # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                          # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                          # effect.
                          #
                          # For example, consider a UrlMap with the following configuration:
                          #
                          #
                          #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                          #      with policies for 5xx and 4xx errors
                          #      - A RouteRule for /coming_soon/ is configured for the
                          #      error code 404.
                          #
                          # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                          # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                          # the policy in RouteRule.customErrorResponsePolicy takes
                          # effect. If any of the requests in this example encounter a 500
                          # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                          #
                          # When
                          # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                          # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                          # a retry, if load balancer is successful in reaching the
                          # service, the customErrorResponsePolicy is ignored and
                          # the response from the service is returned to the client.
                          #
                          # customErrorResponsePolicy is supported only for
                          # global external Application Load Balancers.
                          # backend service or backend bucket responds with an error.
                        "errorResponseRules": [ # Specifies rules for returning error responses.
                            #
                            # In a given policy, if you specify rules for both a range of error codes
                            # as well as rules for specific error codes then rules with specific error
                            # codes have a higher priority. For example, assume that you configure a rule
                            # for 401 (Un-authorized) code, and another for all 4 series
                            # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                            # However if the backend service returns a 403, the rule for4xx takes effect.
                          { # Specifies the mapping between the response code that will be returned along
                              # with the custom error content and the response code returned by the backend
                              # service.
                            "matchResponseCodes": [ # Valid values include:
                                #
                                #
                                #      - A number between 400 and 599: For example
                                #      401 or 503, in which case the load balancer
                                #      applies the policy if the error code exactly matches this value.
                                #      - 5xx: Load Balancer will apply the policy if the
                                #      backend service responds with any response code in the range of
                                #      500 to 599.
                                #    - 4xx: Load
                                #      Balancer will apply the policy if the backend service responds with any
                                #      response code in the range of 400 to
                                #      499.
                                #
                                # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                              "A String",
                            ],
                            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                                # error content. If overrideResponseCode is not supplied, the
                                # same response code returned by the original backend bucket or backend
                                # service is returned to the client.
                            "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                                #
                                # path must start
                                # with a leading slash. path cannot have trailing slashes.
                                #
                                # If the file is not available in backendBucket  or the
                                # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                                #
                                # The value must
                                # be from 1 to 1024 characters
                          },
                        ],
                        "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                            # contains the custom error content. Examples are:
                            #
                            #
                            #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                            #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                            #      - global/backendBuckets/myBackendBucket
                            #
                            # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                            # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                            #
                            # If load balancer cannot reach
                            # the backendBucket, a simple Not Found Error will
                            # be returned, with the original response code (oroverrideResponseCode if configured).
                            #
                            # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                      },
                      "description": "A String", # The short description conveying the intent of this routeRule.
                          #
                          #
                          # The description can have a maximum length of 1024 characters.
                      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                          # for the selected backendService.
                          #
                          # The headerAction value specified here is applied before the
                          # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                          #
                          # HeaderAction is not supported for load balancers
                          # that have
                          # their loadBalancingScheme set to EXTERNAL.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has validateForProxyless field set to true.
                          # the request is passed along to the selected backendService.
                        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values
                                # that already
                                # exist for the header. If true, headerValue is set for the
                                # header, discarding any values that were set for that header.
                                #
                                # The default value is true,
                                # unless a variable is present in headerValue,
                                # in which case the default value is false.
                                # .
                          },
                        ],
                        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                            # request before forwarding the request to the backendService.
                          "A String",
                        ],
                        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                            # client.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values
                                # that already
                                # exist for the header. If true, headerValue is set for the
                                # header, discarding any values that were set for that header.
                                #
                                # The default value is true,
                                # unless a variable is present in headerValue,
                                # in which case the default value is false.
                                # .
                          },
                        ],
                        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                            # response before sending the response back to the client.
                          "A String",
                        ],
                      },
                      "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                          # Director. httpFilterConfigs only applies for load balancers
                          # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                          # more details.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has validateForProxyless field set to true.
                        { # HttpFilterConfiguration supplies additional contextual settings
                            # for networkservices.HttpFilter resources enabled by Traffic
                            # Director.
                          "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                              # YAML formatted and only contain fields defined in the protobuf identified
                              # in configTypeUrl
                          "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                              # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                          "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                              # configuration belongs to. This name must be known to the xDS client.
                              # Example: envoy.wasm
                        },
                      ],
                      "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                          # Director. httpFilterMetadata only applies for load balancers
                          # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                          # more details.
                          #
                          #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has validateForProxyless field set to true.
                        { # HttpFilterConfiguration supplies additional contextual settings
                            # for networkservices.HttpFilter resources enabled by Traffic
                            # Director.
                          "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                              # YAML formatted and only contain fields defined in the protobuf identified
                              # in configTypeUrl
                          "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                              # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                          "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                              # configuration belongs to. This name must be known to the xDS client.
                              # Example: envoy.wasm
                        },
                      ],
                      "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                          # this routeRule when any of thematchRules are satisfied. However predicates within
                          # a given matchRule have AND semantics. All predicates
                          # within a matchRule must match for the request to
                          # match the rule.
                        { # HttpRouteRuleMatch specifies a set of criteria for matching
                            # requests to an HttpRouteRule. All specified criteria must
                            # be satisfied for a match to occur.
                          "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                              # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                              # that may be part of the original URL.
                              #
                              # fullPathMatch must be from 1 to 1024 characters.
                              #
                              # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                              # specified.
                          "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                              # corresponding headers in the request.
                            { # matchRule criteria for request header matches.
                              "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                                  #
                                  # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                              "headerName": "A String", # The name of the HTTP header to match.
                                  #
                                  # For matching against the HTTP request's authority, use a headerMatch
                                  # with the header name ":authority".
                                  #
                                  # For matching a request's method, use the headerName ":method".
                                  #
                                  # When the URL map is bound to a target gRPC proxy that has
                                  # the validateForProxyless field set to true, only
                                  # non-binary
                                  # user-specified custom metadata and the `content-type` header are supported.
                                  # The following transport-level headers cannot be used in header matching
                                  # rules:
                                  # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                                  # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                                  # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                                  # `grpc-timeout` and `grpc-trace-bin`.
                              "invertMatch": True or False, # If set to false, the headerMatch is considered a
                                  # match if the preceding match criteria are met. If set to true,
                                  # the headerMatch is considered a match if the preceding
                                  # match criteria are NOT met.
                                  #
                                  # The default setting is false.
                              "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                                  #
                                  # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                              "presentMatch": True or False, # A header with the contents of headerName must exist. The
                                  # match takes place whether or not the request's header has a value.
                                  #
                                  # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                              "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                                  # specified in rangeMatch. If the header does not contain an
                                  # integer, number or is empty, the match fails.
                                  #
                                  # For example for a range [-5, 0]
                                  #
                                  #
                                  #       - -3 will match.
                                  #       - 0 will not match.
                                  #       - 0.25 will not match.
                                  #       - -3someString will not match.
                                  #
                                  # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                                  #
                                  # rangeMatch is not supported for load balancers
                                  # that have loadBalancingScheme set to EXTERNAL.
                                  # within the specified integer range.
                                "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                                "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                              },
                              "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                                  # For more information about regular expression syntax, see Syntax.
                                  #
                                  # For matching against a port specified in the HTTP request, use a
                                  # headerMatch with headerName set to PORT and a regular expression that
                                  # satisfies the RFC2616 Host header's port specifier.
                                  #
                                  # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                                  #
                                  # Regular expressions can only be used when the loadBalancingScheme is
                                  # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                                  # (regional scope) or INTERNAL_MANAGED.
                              "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                                  #
                                  # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                            },
                          ],
                          "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                              # matches are case sensitive.
                              #
                              # The default value is false.
                              #
                              # ignoreCase must not be used with regexMatch.
                              #
                              # Not supported when the URL map is bound to a target gRPC proxy.
                          "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                              # configuration to a limited set of xDS
                              # compliant clients. In their xDS requests to the load balancer, xDS clients
                              # present node
                              # metadata. When there is a match, the relevant routing configuration
                              # is made available to those proxies.
                              #
                              # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                              # the metadata. If its filterMatchCriteria is set to
                              # MATCH_ALL, then all of its filterLabels must match with
                              # corresponding labels provided in the metadata. If multiple
                              # metadata filters are specified, all of them need to be
                              # satisfied in order to be considered a match.
                              #
                              # metadataFilters specified here is applied after those
                              # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                              #
                              # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                              #
                              # Not supported when the URL map is bound to a target gRPC proxy that
                              # has validateForProxyless field set to true.
                            { # Opaque filter criteria used by load balancers to restrict routing
                                # configuration to a limited set of load balancing proxies. Proxies and
                                # sidecars involved in load balancing would typically present metadata to the
                                # load balancers that need to match criteria specified here. If a match takes
                                # place, the relevant configuration is made available to those
                                # proxies.
                                #
                                # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                                # one of thefilterLabels must match the corresponding label provided in
                                # the metadata. If its filterMatchCriteria is set to
                                # MATCH_ALL, then all of its filterLabels must match with
                                # corresponding labels provided in the metadata.
                                #
                                # An example for using metadataFilters would be: if
                                # load balancing involves
                                # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                              "filterLabels": [ # The list of label value pairs that must match labels in the provided
                                  # metadata based on filterMatchCriteria
                                  #
                                  # This list must not be empty and can have at the most 64 entries.
                                { # MetadataFilter label name value pairs that are expected
                                    # to match corresponding labels presented as metadata to the load balancer.
                                  "name": "A String", # Name of metadata label.
                                      #
                                      #  The name can have a maximum length of 1024 characters and must be at
                                      # least 1 character long.
                                  "value": "A String", # The value of the label must match the specified value.
                                      #
                                      # value can have a maximum length of 1024 characters.
                                },
                              ],
                              "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                                  # within the list of filterLabels and contributes toward the
                                  # overall metadataFilter match.
                                  #
                                  #  Supported values are:
                                  #
                                  #    - MATCH_ANY: at least one of the filterLabels
                                  #    must have a matching label in the provided metadata.
                                  #    - MATCH_ALL: all filterLabels must have
                                  #    matching labels in the provided metadata.
                            },
                          ],
                          "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                              # the :path header after the query string is removed.
                              #
                              # A path template pattern can include variables and wildcards.
                              # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                              # matches a single path segment, and ** that matches zero or
                              # more path segments. The pattern must follow these rules:
                              #
                              #
                              #       - The value must be between 1 and 1024 characters.
                              #       - The pattern must start with a leading slash ("/").
                              #       - No more than 5 operators (variables or wildcards) may appear in
                              #       the pattern.
                              #
                              # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                              # set.
                          "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                              # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                              #
                              # The value must be from 1 to 1024 characters.
                              #
                              # The * character inside a prefix match is
                              # treated as a literal character, not as a wildcard.
                              #
                              # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                              # used within a matchRule.
                          "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                              # match corresponding query parameters in the request.
                              #
                              # Not supported when the URL map is bound to a target gRPC proxy.
                            { # HttpRouteRuleMatch criteria for a request's query parameter.
                              "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                                  # parameter exactly matches the contents of exactMatch.
                                  #
                                  # Only one of presentMatch, exactMatch, orregexMatch must be set.
                              "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                                  # the request, in the absence of which the request match fails.
                              "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                                  # request contains the query parameter, irrespective of whether the
                                  # parameter has a value or not.
                                  #
                                  # Only one of presentMatch, exactMatch, orregexMatch must be set.
                              "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                                  # parameter matches the regular expression specified byregexMatch. For
                                  # more information about regular expression syntax, see Syntax.
                                  #
                                  # Only one of presentMatch, exactMatch, orregexMatch must be set.
                                  #
                                  # Regular expressions can only be used when the loadBalancingScheme is
                                  # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                                  # (regional scope) or INTERNAL_MANAGED.
                            },
                          ],
                          "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                              # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                              # supplied with the original URL. For
                              # more information about regular expression syntax, see Syntax.
                              #
                              # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                              # specified.
                              #
                              # Regular expressions can only be used when the loadBalancingScheme is
                              # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                              # (regional scope) or INTERNAL_MANAGED.
                        },
                      ],
                      "priority": 42, # For routeRules within a given pathMatcher,
                          # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                          # of priority, from the lowest to highest number. The priority of a
                          # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                          # that matches the request is applied.
                          #
                          #
                          # You cannot configure two or more routeRules with the same priority.
                          # Priority for each rule must be set to a number from 0 to 2147483647
                          # inclusive.
                          #
                          #
                          # Priority numbers can have gaps, which enable you to add or remove rules
                          # in the future without affecting the rest of the rules. For example, 1, 2,
                          # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                          # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                          # without any impact on existing rules.
                      "routeAction": { # In response to a matching matchRule, the load balancer
                          # performs advanced routing actions, such as URL rewrites and header
                          # transformations, before forwarding the request to the selected backend.
                          #
                          #
                          # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                          #
                          #
                          # URL maps for classic Application Load Balancers only support
                          # the urlRewrite action within a route rule'srouteAction.
                        "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                            # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                            # property must be specified. This policy cannot be specified if any target
                            # backend has Identity-Aware Proxy enabled.
                          "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                              # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                              # header names can be specified. The cache is bypassed for all `cacheMode`
                              # values.
                            "A String",
                          ],
                          "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                              # on the backend type: for Backend Services, the complete request URI is
                              # used; for Backend Buckets, the request URI is used without the protocol or
                              # host, and only query parameters known to Cloud Storage are included.
                              # Policy defined on Route Action.
                            "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                                # parameters will be included. Either specify `excludedQueryParameters`
                                # or `includedQueryParameters`, not both. '&' and '=' will be percent
                                # encoded and not treated as delimiters.
                                #
                                # Note: This field applies to routes that use backend services. Attempting
                                # to set it on a route that points exclusively to Backend Buckets will
                                # result in a configuration error. For routes that point to a Backend
                                # Bucket, use `includedQueryParameters` to define which parameters should
                                # be part of the cache key.
                              "A String",
                            ],
                            "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                                #
                                # Note: This setting is only applicable to routes that use a Backend
                                # Service. It does not affect requests served by a Backend Bucket, as the
                                # host is never included in a Backend Bucket's cache key. Attempting to set
                                # it on a route that points exclusively to Backend Buckets will result in a
                                # configuration error.
                            "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                                #
                                # Note: This setting is only applicable to routes that use a Backend
                                # Service. It does not affect requests served by a Backend Bucket, as the
                                # protocol is never included in a Backend Bucket's cache key. Attempting to
                                # set on a route that points exclusively to Backend Buckets will result in
                                # a configuration error.
                            "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                                # `includedQueryParameters` and `excludedQueryParameters`. If neither
                                # is set, the entire query string will be included. If false, the query
                                # string will be excluded from the cache key entirely.
                                #
                                # Note: This field applies to routes that use backend services. Attempting
                                # to set it on a route that points exclusively to Backend Buckets will
                                # result in a configuration error. For routes that point to a Backend
                                # Bucket, use `includedQueryParameters` to define which parameters should
                                # be part of the cache key.
                            "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                                # The name=value pair will be used in the cache key Cloud CDN generates.
                                #
                                # Note: This setting is only applicable to routes that use a Backend
                                # Service. It does not affect requests served by a Backend Bucket.
                                # Attempting to set it on a route that points exclusively to Backend
                                # Buckets will result in a configuration error. Up to 5 cookie names can be
                                # specified.
                              "A String",
                            ],
                            "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                              "A String",
                            ],
                            "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                                # parameters will be excluded. Either specify `includedQueryParameters`
                                # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                                # encoded and not treated as delimiters.
                              "A String",
                            ],
                          },
                          "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                              # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                          "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                              # content. This is used to clamp the max-age (or Expires) value sent to the
                              # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                              # is used for the response max-age directive, along with a "public"
                              # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                              # clamps the max-age from the origin (if specified), or else sets the
                              # response max-age directive to the lesser of the `clientTtl` and
                              # `defaultTtl`, and also ensures a "public" cache-control directive is
                              # present. The maximum allowed value is 31,622,400s (1 year). If not
                              # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                              # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                              # `USE_ORIGIN_HEADERS`.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                              # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                              # "always revalidate". The value of `defaultTtl` cannot be set to a value
                              # greater than that of `maxTtl`. When the `cacheMode` is set to
                              # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                              # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                              # accessed objects may be evicted from the cache before the defined TTL. If
                              # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                              # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                              # `USE_ORIGIN_HEADERS`.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                              # attempt to set a max-age or s-maxage higher than this, or an Expires header
                              # more than `maxTtl` seconds in the future will be capped at the value of
                              # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                              # Headers sent to the client will not be modified. Setting a TTL of "0" means
                              # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                              # Infrequently accessed objects may be evicted from the cache before the
                              # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                              # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                              # mode.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                              # to apply fine-grained caching for common errors or redirects.
                              # This can reduce the load on your origin and improve end-user
                              # experience by reducing response latency.
                              # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                              # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                              # the specified response code that lack any Cache-Control, Expires, or
                              # Pragma: no-cache directives. When the `cacheMode` is set to
                              # `FORCE_CACHE_ALL`, negative caching applies to all responses
                              # with the specified response code, and overrides any caching headers. By
                              # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                              #
                              # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                              # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                              # * 405 (Method Not Found), 501 (Not Implemented): 60s
                              #
                              # These defaults can be overridden in `negativeCachingPolicy`.
                              # If not specified, Cloud CDN applies negative caching by default.
                          "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                              # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                              # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                              # CDN's default cache TTLs. Note that when specifying an explicit
                              # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                              # all response codes that you wish to cache. Cloud CDN will not apply any
                              # default negative caching when a policy exists.
                            { # Specify CDN TTLs for response error codes.
                              "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                                  # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                                  # specified as values, and you cannot specify a status code more than
                                  # once.
                              "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                                  # corresponding status code.
                                  # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                                  # objects may be evicted from the cache before the defined TTL.
                                  # as a count of seconds and fractions of seconds at nanosecond
                                  # resolution. It is independent of any calendar and concepts like "day"
                                  # or "month". Range is approximately 10,000 years.
                                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                    # Durations less than one second are represented with a 0
                                    # `seconds` field and a positive `nanos` field. Must be from 0
                                    # to 999,999,999 inclusive.
                                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                              },
                            },
                          ],
                          "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                              # requests into a small number of requests to the origin. If not specified,
                              # Cloud CDN applies request coalescing by default.
                          "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                              # content with the origin, or when an error is encountered when refreshing
                              # the cache.
                              # This setting defines the default "max-stale" duration for any cached
                              # responses that do not specify a max-stale directive. Stale responses that
                              # exceed the TTL configured here will not be served. The default limit
                              # (max-stale) is 86400s (1 day), which will allow stale content to be
                              # served up to this limit beyond the max-age (or s-maxage) of a cached
                              # response.
                              # The maximum allowed value is 604800 (1 week).
                              # Set this to zero (0) to disable serve-while-stale.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                        },
                        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                            # information about the W3C recommendation for cross-origin resource sharing
                            # (CORS), see Fetch API Living
                            # Standard.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy.
                            # information about the W3C recommendation for cross-origin resource sharing
                            # (CORS), see Fetch API Living
                            # Standard.
                          "allowCredentials": True or False, # In response to a preflight request, setting this to true
                              # indicates that
                              # the actual request can include user credentials. This field translates to
                              # the Access-Control-Allow-Credentials header.
                              #
                              # Default is false.
                          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                              # header.
                            "A String",
                          ],
                          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                              # header.
                            "A String",
                          ],
                          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                              # more information, see regular expression syntax.
                              #
                              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                              #
                              # Regular expressions can only be used when the loadBalancingScheme is
                              # set to INTERNAL_SELF_MANAGED.
                            "A String",
                          ],
                          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                              #
                              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                            "A String",
                          ],
                          "disabled": True or False, # If true, disables the CORS policy.
                              # The default value is false, which indicates that the CORS
                              # policy is in effect.
                          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                              # header.
                            "A String",
                          ],
                          "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                              # seconds. This field translates to the Access-Control-Max-Age
                              # header.
                        },
                        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                            # the resiliency of clients to backend service failure. As part of fault
                            # injection, when clients send requests to a backend service, delays can be
                            # introduced by a load balancer on a percentage of requests before sending
                            # those requests to the backend service. Similarly requests from clients can
                            # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                            # that are configured with a fault_injection_policy if:
                            # 1. The traffic is generated by fault injection AND
                            # 2. The fault injection is not a delay fault injection.
                            # Fault injection is not supported with the classic Application Load Balancer
                            # . To see which load balancers support fault injection,
                            # see Load
                            # balancing: Routing and traffic management features.
                            # the resiliency of clients to backend service failure. As part of fault
                            # injection, when clients send requests to a backend service, delays can be
                            # introduced by the load balancer on a percentage of requests before sending
                            # those request to the backend service. Similarly requests from clients can be
                            # aborted by the load balancer for a percentage of requests.
                          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                              # injection.
                            "httpStatus": 42, # The HTTP status code used to abort the request.
                                #
                                # The value must be from 200 to 599 inclusive.
                                #
                                # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                                # according to this
                                # mapping table. HTTP status 200 is mapped to gRPC status
                                # UNKNOWN. Injecting an OK status is currently not supported by
                                # Traffic Director.
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                                # that is aborted as part of fault injection.
                                #
                                # The value must be from 0.0 to 100.0 inclusive.
                          },
                          "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                              # injection, before being sent to a backend service.
                              # request to the backend service as part of fault injection.
                            "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                                # as a count of seconds and fractions of seconds at nanosecond
                                # resolution. It is independent of any calendar and concepts like "day"
                                # or "month". Range is approximately 10,000 years.
                              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                  # Durations less than one second are represented with a 0
                                  # `seconds` field and a positive `nanos` field. Must be from 0
                                  # to 999,999,999 inclusive.
                              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                            },
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                                # which a delay is introduced as part of fault injection.
                                #
                                # The value must be from 0.0 to 100.0 inclusive.
                          },
                        },
                        "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                            # Global EXTERNAL_MANAGED load balancer schemes.
                            # Either Cloud CDN must be enabled on the backend service or backend bucket
                            # serving the route, or cache policy must be configured on the same route
                            # dynamically processes and delivers images from the network edge.
                            # Image Optimization is only available for Global External Application Load
                            # Balancers.
                            # Either Cloud CDN must be enabled on the backend service or backend bucket
                            # serving the route, or cache policy must be configured on the same route.
                          "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                        },
                        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                            # Unlike the timeout field where the timeout duration starts
                            # from the time the request has been fully processed (known as*end-of-stream*),
                            # the duration in this field is computed from the beginning of the stream
                            # until the response has been processed, including all retries. A
                            # stream that does not complete in this duration is closed.
                            #
                            # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                            # with the route.
                            #
                            # This field is only allowed if the Url map is used with backend services
                            # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                            # are shadowed to a separate mirrored backend service. The load balancer does
                            # not wait for responses from the shadow service. Before sending traffic
                            # to the shadow service, the host / authority header is suffixed with-shadow.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has the validateForProxyless field set to true.
                            # are shadowed to a separate mirrored backend service. The load balancer
                            # doesn't wait for responses from the shadow service. Before sending traffic
                            # to the shadow service, the host or authority header is suffixed with-shadow.
                          "backendService": "A String", # The full or partial URL to the BackendService resource being
                              # mirrored to.
                              #
                              # The backend service configured for a mirroring
                              # policy must reference backends that are of the same type as the original
                              # backend service matched in the URL map.
                              #
                              # Serverless NEG backends are not currently supported as a mirrored
                              # backend service.
                          "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                        },
                        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                              # If not specified, defaults to 1.
                          "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                              #
                              # If not specified, will use the timeout set in theHttpRouteAction field.
                              # If timeout in the HttpRouteAction field is not set, this field
                              # uses the largest timeout
                              # among all backend services associated with the route.
                              #
                              # Not supported when the URL map is bound to a target gRPC proxy that
                              # has the validateForProxyless field set to true.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                              # values are:
                              #
                              #    - 5xx: retry is attempted if the instance or endpoint
                              #    responds with any 5xx response code, or if the instance or
                              #    endpoint does not respond at all. For example, disconnects, reset, read
                              #    timeout, connection failure, and refused streams.
                              #    - gateway-error: Similar to 5xx, but only
                              #    applies to response codes 502, 503 or504.
                              #    - connect-failure: a retry is attempted on failures
                              #    connecting to the instance or endpoint. For example, connection
                              #    timeouts.
                              #    - retriable-4xx: a retry is attempted if the instance
                              #    or endpoint responds with a 4xx response code.
                              #    The only error that you can retry is error code 409.
                              #    - refused-stream: a retry is attempted if the instance
                              #    or endpoint resets the stream with a REFUSED_STREAM error
                              #    code. This reset type indicates that it is safe to retry.
                              #    - cancelled: a retry is attempted if the gRPC status
                              #    code in the response header is set to cancelled.
                              #    - deadline-exceeded: a retry is attempted if the gRPC
                              #    status code in the response header is set todeadline-exceeded.
                              #    - internal: a retry is attempted if the gRPC
                              #    status code in the response header is set tointernal.
                              #    - resource-exhausted: a retry is attempted if the gRPC
                              #    status code in the response header is set toresource-exhausted.
                              #    - unavailable: a retry is attempted if the gRPC
                              #    status code in the response header is set tounavailable.
                              #
                              # Only the following codes are supported when the URL map is bound to
                              # target gRPC proxy that has validateForProxyless field set to true.
                              #
                              #    - cancelled
                              #    - deadline-exceeded
                              #    - internal
                              #    - resource-exhausted
                              #    - unavailable
                            "A String",
                          ],
                        },
                        "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                            # time the request has been fully processed (known as *end-of-stream*)
                            # up until the response has been processed. Timeout includes
                            # all retries.
                            #
                            # If not specified, this field uses the largest timeout among all backend
                            # services associated with the route.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has validateForProxyless field set to true.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                            # to the matched service.
                            #
                            #  urlRewrite is the only action supported in UrlMaps
                            # for classic Application Load Balancers.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has the validateForProxyless field set to true.
                            # backend service.
                          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                              # host header is replaced with contents of hostRewrite.
                              #
                              # The value must be from 1 to 255 characters.
                          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                              # matching portion of the request's path is replaced bypathPrefixRewrite.
                              #
                              # The value must be from 1 to 1024 characters.
                          "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                              # header) using the HTTP template syntax.
                              #
                              # A corresponding
                              # path_template_match must be specified. Any template variables must exist in
                              # the path_template_match field.
                              #
                              #
                              #       - -At least one variable must be specified in the path_template_match
                              #       field
                              #    - You can omit variables from the rewritten URL
                              #       - The * and ** operators cannot be matched
                              #       unless they have a corresponding variable name - e.g.
                              #       {format=*} or {var=**}.
                              #
                              # For example, a path_template_match of /static/{format=**}
                              # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                              # rewrite, so that /{country}/{format}/{suffix=**} can be
                              # rewritten as /content/{format}/{country}/{suffix}.
                              #
                              # At least
                              # one non-empty routeRules[].matchRules[].path_template_match is
                              # required.
                              #
                              # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                          "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                            "pathPattern": "A String", # The regular expression used to match against the URL path.
                                # It uses RE2 syntax with the following constraints:
                                #
                                #
                                #      - Any single character operators
                                #      - Groups are allowed to have only submatch operator inside
                                #      - Groups are allowed only without any char repetition, e.g.
                                #      .*
                                #      - Any char repetition, e.g. .*, is
                                #      only allowed to be used in a single regex together with:
                                #
                                #
                                #             - Empty string operators
                                #             - Other repetitions
                                #             - Ranges
                                #             - Repetitions of ranges
                                #
                                #
                                #      - Ranges are only allowed to have:
                                #
                                #
                                #             - Character range
                                #             - Digits range
                                #             - Symbols listed in characters allowed for ranges
                            "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                                # the path.
                          },
                        },
                        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                            # occurs. The weights determine the fraction of traffic that flows to
                            # their corresponding backend service. If all traffic needs to
                            # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                            #
                            # After a backend service is identified and before forwarding
                            # the request to
                            # the backend service, advanced routing actions such as URL rewrites and
                            # header transformations are applied depending on additional settings
                            # specified in this HttpRouteAction.
                          { # In contrast to a single BackendService in
                              # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                              # multiple backend services. The volume of traffic for each
                              # backend service is proportional to the weight specified
                              # in each WeightedBackendService
                            "backendService": "A String", # The full or partial URL to the default BackendService
                                # resource. Before
                                # forwarding the request to backendService, the load balancer
                                # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                                # effect for the selected backendService.
                                #
                                # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                                #
                                # headerAction is not supported for load balancers that have
                                # their loadBalancingScheme set to EXTERNAL.
                                #
                                # Not supported when the URL map is bound to a target gRPC proxy that
                                # has validateForProxyless field set to true.
                                # the request is passed along to the selected backendService.
                              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values
                                      # that already
                                      # exist for the header. If true, headerValue is set for the
                                      # header, discarding any values that were set for that header.
                                      #
                                      # The default value is true,
                                      # unless a variable is present in headerValue,
                                      # in which case the default value is false.
                                      # .
                                },
                              ],
                              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                                  # request before forwarding the request to the backendService.
                                "A String",
                              ],
                              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                                  # client.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values
                                      # that already
                                      # exist for the header. If true, headerValue is set for the
                                      # header, discarding any values that were set for that header.
                                      #
                                      # The default value is true,
                                      # unless a variable is present in headerValue,
                                      # in which case the default value is false.
                                      # .
                                },
                              ],
                              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                                  # response before sending the response back to the client.
                                "A String",
                              ],
                            },
                            "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                                # computed asweight / (sum of all weightedBackendService weights in routeAction).
                                #
                                # The selection of a backend service is determined only for new traffic.
                                # Once a user's request has been directed to a backend service,
                                # subsequent requests are sent to the same backend service as
                                # determined by the backend service's session affinity policy.
                                # Don't configure session affinity if you're using weighted traffic
                                # splitting. If you do, the weighted traffic splitting configuration takes
                                # precedence.
                                #
                                # The value must be from 0 to 1000.
                          },
                        ],
                      },
                      "service": "A String", # The full or partial URL of the backend service resource to which traffic
                          # is directed if this rule is matched. If routeAction is
                          # also specified, advanced routing actions, such as URL rewrites,
                          # take effect before sending the request to the backend.
                          #
                          #
                          # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                      "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                          # specified by urlRedirect.
                          #
                          #
                          # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                          #
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy.
                        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                            # was supplied in the request.
                            #
                            # The value must be from 1 to 255
                            # characters.
                        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                            # set to HTTPS.
                            # If set to false, the URL scheme of the redirected request
                            # remains the same as that of the request.
                            #
                            # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                            #
                            # The default is set to false.
                        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                            # that was supplied in the request.
                            #
                            # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                            # supplied, the path of the original request is used for the redirect.
                            #
                            # The value must be from 1 to 1024 characters.
                        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                            # the HttpRouteRuleMatch, retaining the remaining portion
                            # of the URL before redirecting the request.
                            #
                            # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                            # supplied, the path of the original request is used for the redirect.
                            #
                            # The value must be from 1 to 1024 characters.
                        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                            #
                            # Supported values are:
                            #
                            #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                            #    to 301.
                            #    - FOUND, which corresponds to 302.
                            #    - SEE_OTHER which corresponds to 303.
                            #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                            #    method is retained.
                            #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                            #    method is retained.
                        "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                            # URL is
                            # removed before redirecting the request. If set to false, the
                            # query portion of the original URL is retained.
                            #
                            # The default is set to false.
                      },
                    },
                  ],
                },
              ],
              "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
                  # This field is not applicable to global URL maps.
                  # You must specify this field as part of the HTTP request URL. It is
                  # not settable as a field in the request body.
              "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
              "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
                "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
                  "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
                  "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
                },
              },
              "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
                  # maximum of 100 tests per UrlMap.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # Message for the expected URL mappings.
                  "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
                      # routing rules that involve traffic splitting.
                  "description": "A String", # Description of this test case.
                  "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
                      # containing the scheme, host, path and query parameters.
                      #
                      # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
                      # the load balancer to backends. For rules with urlRewrite,
                      # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
                      #
                      # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
                      # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
                      # If urlRedirect specifies strip_query, the test
                      # passes only if expectedOutputUrl does not contain any query
                      # parameters.
                      #
                      # expectedOutputUrl is optional whenservice is specified.
                  "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
                      # load balancer's redirect response.
                      #
                      # expectedRedirectResponseCode cannot be set whenservice is set.
                  "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
                      # being tested.
                      # [Deprecated] This field is deprecated.
                      # Use expected_output_url instead.
                  "headers": [ # HTTP headers for this request. If headers contains
                      # a host header, then host must also match the header value.
                    { # HTTP headers used in UrlMapTests.
                      "name": "A String", # Header name.
                      "value": "A String", # Header value.
                    },
                  ],
                  "host": "A String", # Host portion of the URL. If headers contains a host header,
                      # then host must also match the header value.
                  "path": "A String", # Path portion of the URL.
                  "service": "A String", # Expected BackendService or BackendBucket resource
                      # the given URL should be mapped to.
                      #
                      # The service field cannot
                      # be set if expectedRedirectResponseCode is set.
                },
              ],
            },
          ],
          "warning": { # Informational warning which replaces the list of
              # backend services when the list is empty.
            "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
                # Engine returns NO_RESULTS_ON_PAGE if there
                # are no results in the response.
            "data": [ # [Output Only] Metadata about this warning in key:
                # value format. For example:
                #
                # "data": [
                #   {
                #    "key": "scope",
                #    "value": "zones/us-east1-d"
                #   }
              {
                "key": "A String", # [Output Only] A key that provides more detail on the warning being
                    # returned. For example, for warnings where there are no results in a list
                    # request for a particular zone, this key might be scope and
                    # the key value might be the zone name. Other examples might be a key
                    # indicating a deprecated resource and a suggested replacement, or a
                    # warning about invalid network settings (for example, if an instance
                    # attempts to perform IP forwarding but is not enabled for IP forwarding).
                "value": "A String", # [Output Only] A warning data value corresponding to the key.
              },
            ],
            "message": "A String", # [Output Only] A human-readable description of the warning code.
          },
        },
      },
      "kind": "compute#urlMapsAggregatedList", # Output only. Type of resource.
      "nextPageToken": "A String", # [Output Only] This token allows you to get the next page of results for
          # list requests. If the number of results is larger thanmaxResults, use the nextPageToken as a value for
          # the query parameter pageToken in the next list request.
          # Subsequent list requests will have their own nextPageToken to
          # continue paging through the results.
      "selfLink": "A String", # Output only. [Output Only] Server-defined URL for this resource.
      "unreachables": [ # Output only. [Output Only] Unreachable resources.
        "A String",
      ],
      "warning": { # [Output Only] Informational warning message.
        "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
            # Engine returns NO_RESULTS_ON_PAGE if there
            # are no results in the response.
        "data": [ # [Output Only] Metadata about this warning in key:
            # value format. For example:
            #
            # "data": [
            #   {
            #    "key": "scope",
            #    "value": "zones/us-east1-d"
            #   }
          {
            "key": "A String", # [Output Only] A key that provides more detail on the warning being
                # returned. For example, for warnings where there are no results in a list
                # request for a particular zone, this key might be scope and
                # the key value might be the zone name. Other examples might be a key
                # indicating a deprecated resource and a suggested replacement, or a
                # warning about invalid network settings (for example, if an instance
                # attempts to perform IP forwarding but is not enabled for IP forwarding).
            "value": "A String", # [Output Only] A warning data value corresponding to the key.
          },
        ],
        "message": "A String", # [Output Only] A human-readable description of the warning code.
      },
    }

`aggregatedList_next()`

    Retrieves the next page of results.

            Args:
              previous_request: The request for the previous page. (required)
              previous_response: The response from the request for the previous page. (required)

            Returns:
              A request object that you can call 'execute()' on to request the next
              page. Returns None if there are no more items in the collection.

`close()`

    Close httplib2 connections.

`delete(project, urlMap, requestId=None, x__xgafv=None)`

    Deletes the specified UrlMap resource.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to delete. (required)
      requestId: string, An optional request ID to identify requests. Specify a unique request ID so
    that if you must retry your request, the server will know to ignore the
    request if it has already been completed.

    For example, consider a situation where you make an initial request and
    the request times out. If you make the request again with the same
    request ID, the server can check if original operation with the same
    request ID was received, and if so, will ignore the second request. This
    prevents clients from accidentally creating duplicate commitments.

    The request ID must be
    a valid UUID with the exception that zero UUID is not supported
    (00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource.
        #
        # Google Compute Engine has three Operation resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/globalOperations)
        # * [Regional](/compute/docs/reference/rest/alpha/regionOperations)
        # * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations)
        #
        # You can use an operation resource to manage asynchronous API requests.
        # For more information, readHandling
        # API responses.
        #
        # Operations can be global, regional or zonal.
        #
        #    - For global operations, use the `globalOperations`
        #    resource.
        #    - For regional operations, use the
        #    `regionOperations` resource.
        #    - For zonal operations, use
        #    the `zoneOperations` resource.
        #
        #
        #
        # For more information, read
        # Global, Regional, and Zonal Resources.
        #
        # Note that completed Operation resources have a limited
        # retention period.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request.
          # Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is
          # set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is inRFC3339
          # text format.
      "error": { # [Output Only] If errors are generated during processing of the operation,
          # this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this
            # operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error
                # details. There is a set of defined message types to use for providing
                # details.The syntax depends on the error code. For example,
                # QuotaExceededInfo will have details when the error code is
                # QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details.
                    #
                    # Example of an error when contacting the "pubsub.googleapis.com" API when it
                    # is not enabled:
                    #
                    #     { "reason": "API_DISABLED"
                    #       "domain": "googleapis.com"
                    #       "metadata": {
                    #         "resource": "projects/123",
                    #         "service": "pubsub.googleapis.com"
                    #       }
                    #     }
                    #
                    # This response indicates that the pubsub.googleapis.com API is not enabled.
                    #
                    # Example of an error that is returned when attempting to create a Spanner
                    # instance in a region that is out of stock:
                    #
                    #     { "reason": "STOCKOUT"
                    #       "domain": "spanner.googleapis.com",
                    #       "metadata": {
                    #         "availableRegions": "us-central1,us-east2"
                    #       }
                    #     }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain
                      # is typically the registered service name of the tool or product that
                      # generates the error. Example: "pubsub.googleapis.com". If the error is
                      # generated by some common infrastructure, the error domain must be a
                      # globally unique value that identifies the infrastructure. For Google API
                      # infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error.
                      #
                      # Keys must match a regular expression of `a-z+` but should
                      # ideally be lowerCamelCase. Also, they must be limited to 64 characters in
                      # length. When identifying the current value of an exceeded limit, the units
                      # should be contained in the key, not the value.  For example, rather than
                      # `{"instanceLimit": "100/request"}`, should be returned as,
                      # `{"instanceLimitPerRequest": "100"}`, if the client exceeds the number of
                      # instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the
                      # proximate cause of the error. Error reasons are unique within a particular
                      # domain of errors. This should be at most 63 characters and match a
                      # regular expression of `A-Z+[A-Z0-9]`, which represents
                      # UPPER_SNAKE_CASE.
                },
                "help": { # Provides links to documentation or for performing an out of band action.
                    #
                    # For example, if a quota check failed with an error indicating the calling
                    # project hasn't enabled the accessed service, this can contain a URL pointing
                    # directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user
                    # which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at
                      # https://www.rfc-editor.org/rfc/bcp/bcp47.txt.
                      # Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "futureLimit": 3.14, # Future quota limit being rolled out. The limit's unit depends on the quota
                      #  type or metric.
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type
                      # or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                  "rolloutStatus": "A String", # Rollout status of the future quota limit.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error.
                # This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "getVersionOperationMetadata": {
        "inlineSbomInfo": {
          "currentComponentVersions": { # A mapping of components to their currently-applied versions or other
              # appropriate identifiers.
            "a_key": "A String",
          },
          "targetComponentVersions": { # A mapping of components to their target versions or other appropriate
              # identifiers.
            "a_key": "A String",
          },
        },
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error
          # message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error
          # status code that was returned. For example, a `404` means the
          # resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is
          # defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested.
          # This value is inRFC3339
          # text format.
      "instancesBulkInsertOperationMetadata": {
        "perLocationStatus": { # Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "createdVmCount": 42, # [Output Only] Count of VMs successfully created so far.
            "deletedVmCount": 42, # [Output Only] Count of VMs that got deleted during rollback.
            "failedToCreateVmCount": 42, # [Output Only] Count of VMs that started creating but encountered an
                # error.
            "status": "A String", # [Output Only] Creation status of BulkInsert operation - information
                # if the flow is rolling forward or rolling back.
            "targetVmCount": 42, # [Output Only] Count of VMs originally planned to be created.
          },
        },
      },
      "kind": "compute#operation", # Output only. [Output Only] Type of the resource. Always `compute#operation` for
          # Operation resources.
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # Output only. [Output Only] An ID that represents a group of operations, such as when a
          # group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`,
          # `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100.
          # There is no requirement that this be linear or support any granularity of
          # operations. This should not be used to guess when the operation will be
          # complete. This number should monotonically increase as the operation
          # progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only
          # applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # Output only. [Output Only] Server-defined URL for this resource with the resource id.
      "setCommonInstanceMetadataOperationMetadata": { # Output only. [Output Only] If the operation is for projects.setCommonInstanceMetadata,
          # this field will contain information on all underlying zonal actions and
          # their state.
        "clientOperationId": "A String", # [Output Only] The client operation id.
        "perLocationOperations": { # [Output Only] Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "error": { # The `Status` type defines a logical error model that is suitable for # [Output Only] If state is `ABANDONED` or `FAILED`, this field is
                # populated.
                # different programming environments, including REST APIs and RPC APIs. It is
                # used by [gRPC](https://github.com/grpc). Each `Status` message contains
                # three pieces of data: error code, error message, and error details.
                #
                # You can find out more about this error model and how to work with it in the
                # [API Design Guide](https://cloud.google.com/apis/design/errors).
              "code": 42, # The status code, which should be an enum value of google.rpc.Code.
              "details": [ # A list of messages that carry the error details.  There is a common set of
                  # message types for APIs to use.
                {
                  "a_key": "", # Properties of the object. Contains field @type with type URL.
                },
              ],
              "message": "A String", # A developer-facing error message, which should be in English. Any
                  # user-facing error message should be localized and sent in the
                  # google.rpc.Status.details field, or localized by the client.
            },
            "state": "A String", # [Output Only] Status of the action, which can be one of the following:
                # `PROPAGATING`, `PROPAGATED`, `ABANDONED`, `FAILED`, or `DONE`.
          },
        },
      },
      "startTime": "A String", # [Output Only] The time that this operation was started by the server.
          # This value is inRFC3339
          # text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the
          # following:
          # `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the
          # operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation
          # of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For
          # operations related to creating a snapshot, this points to the disk
          # that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example:
          # `user@example.com` or
          # `alice_smith_identifier (global/workforcePools/example-com-us-employees)`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the
          # operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
              # Engine returns NO_RESULTS_ON_PAGE if there
              # are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key:
              # value format. For example:
              #
              # "data": [
              #   {
              #    "key": "scope",
              #    "value": "zones/us-east1-d"
              #   }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being
                  # returned. For example, for warnings where there are no results in a list
                  # request for a particular zone, this key might be scope and
                  # the key value might be the zone name. Other examples might be a key
                  # indicating a deprecated resource and a suggested replacement, or a
                  # warning about invalid network settings (for example, if an instance
                  # attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only
          # applicable when performing per-zone operations.
    }

`get(project, urlMap, x__xgafv=None)`

    Returns the specified UrlMap resource.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to return. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents a URL Map resource.
        #
        # Compute Engine has two URL Map resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
        # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
        #
        # A URL map resource is a component of certain types of cloud load balancers
        # and Traffic Director:
        #
        # * urlMaps are used by global external Application Load
        # Balancers, classic Application Load Balancers, and cross-region internal
        # Application Load Balancers.
        # * regionUrlMaps are used by internal Application Load Balancers,
        # regional external Application Load Balancers and regional internal
        # Application Load Balancers.
        #
        # For a list of supported URL map features by the load balancer type, see the
        # Load balancing features: Routing and traffic management table.
        #
        # For a list of supported URL map features for Traffic Director, see the
        # Traffic Director features: Routing and traffic management table.
        #
        # This resource defines mappings from hostnames and URL paths to either a
        # backend service or a backend bucket.
        #
        # To use the global urlMaps resource, the backend service must
        # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
        # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
        # information, read URL
        # Map Concepts.
      "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
          # text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
          # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
          #
          # This policy takes
          # effect at the load balancer level and applies only when no policy has been
          # defined for the error code at lower levels like PathMatcher, RouteRule and
          # PathRule within this UrlMap.
          #
          # For example, consider a UrlMap with the
          # following configuration:
          #
          #
          #      - defaultCustomErrorResponsePolicy containing policies for
          #      responding to 5xx and 4xx errors
          #      - A PathMatcher configured for *.example.com has
          #      defaultCustomErrorResponsePolicy for 4xx.
          #
          # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
          # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
          # a request that does not match any host in *.example.com such
          # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
          # takes effect.
          #
          # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
          # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
          # a retry, if load balancer is successful in reaching the
          # service, the defaultCustomErrorResponsePolicy is ignored and
          # the response from the service is returned to the client.
          #
          # defaultCustomErrorResponsePolicy is supported only for
          # global external Application Load Balancers.
          # backend service or backend bucket responds with an error.
        "errorResponseRules": [ # Specifies rules for returning error responses.
            #
            # In a given policy, if you specify rules for both a range of error codes
            # as well as rules for specific error codes then rules with specific error
            # codes have a higher priority. For example, assume that you configure a rule
            # for 401 (Un-authorized) code, and another for all 4 series
            # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
            # However if the backend service returns a 403, the rule for4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along
              # with the custom error content and the response code returned by the backend
              # service.
            "matchResponseCodes": [ # Valid values include:
                #
                #
                #      - A number between 400 and 599: For example
                #      401 or 503, in which case the load balancer
                #      applies the policy if the error code exactly matches this value.
                #      - 5xx: Load Balancer will apply the policy if the
                #      backend service responds with any response code in the range of
                #      500 to 599.
                #    - 4xx: Load
                #      Balancer will apply the policy if the backend service responds with any
                #      response code in the range of 400 to
                #      499.
                #
                # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                # error content. If overrideResponseCode is not supplied, the
                # same response code returned by the original backend bucket or backend
                # service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                #
                # path must start
                # with a leading slash. path cannot have trailing slashes.
                #
                # If the file is not available in backendBucket  or the
                # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                #
                # The value must
                # be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that
            # contains the custom error content. Examples are:
            #
            #
            #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - global/backendBuckets/myBackendBucket
            #
            # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
            # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
            #
            # If load balancer cannot reach
            # the backendBucket, a simple Not Found Error will
            # be returned, with the original response code (oroverrideResponseCode if configured).
            #
            # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the
          # hostRules match. The load balancer performs advanced routing
          # actions, such as URL rewrites and header transformations, before forwarding
          # the request to the selected backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          #  URL maps for classic Application Load Balancers only support
          # the urlRewrite action within defaultRouteAction.
          #
          #
          # defaultRouteAction has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
        "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
            # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
            # property must be specified. This policy cannot be specified if any target
            # backend has Identity-Aware Proxy enabled.
          "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
              # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
              # header names can be specified. The cache is bypassed for all `cacheMode`
              # values.
            "A String",
          ],
          "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
              # on the backend type: for Backend Services, the complete request URI is
              # used; for Backend Buckets, the request URI is used without the protocol or
              # host, and only query parameters known to Cloud Storage are included.
              # Policy defined on Route Action.
            "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                # parameters will be included. Either specify `excludedQueryParameters`
                # or `includedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
              "A String",
            ],
            "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # host is never included in a Backend Bucket's cache key. Attempting to set
                # it on a route that points exclusively to Backend Buckets will result in a
                # configuration error.
            "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # protocol is never included in a Backend Bucket's cache key. Attempting to
                # set on a route that points exclusively to Backend Buckets will result in
                # a configuration error.
            "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                # `includedQueryParameters` and `excludedQueryParameters`. If neither
                # is set, the entire query string will be included. If false, the query
                # string will be excluded from the cache key entirely.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
            "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                # The name=value pair will be used in the cache key Cloud CDN generates.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket.
                # Attempting to set it on a route that points exclusively to Backend
                # Buckets will result in a configuration error. Up to 5 cookie names can be
                # specified.
              "A String",
            ],
            "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
              "A String",
            ],
            "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                # parameters will be excluded. Either specify `includedQueryParameters`
                # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
              "A String",
            ],
          },
          "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
              # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
          "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
              # content. This is used to clamp the max-age (or Expires) value sent to the
              # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
              # is used for the response max-age directive, along with a "public"
              # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
              # clamps the max-age from the origin (if specified), or else sets the
              # response max-age directive to the lesser of the `clientTtl` and
              # `defaultTtl`, and also ensures a "public" cache-control directive is
              # present. The maximum allowed value is 31,622,400s (1 year). If not
              # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
              # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
              # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
              # "always revalidate". The value of `defaultTtl` cannot be set to a value
              # greater than that of `maxTtl`. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
              # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
              # accessed objects may be evicted from the cache before the defined TTL. If
              # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
              # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
              # attempt to set a max-age or s-maxage higher than this, or an Expires header
              # more than `maxTtl` seconds in the future will be capped at the value of
              # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
              # Headers sent to the client will not be modified. Setting a TTL of "0" means
              # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
              # Infrequently accessed objects may be evicted from the cache before the
              # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
              # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
              # mode.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
              # to apply fine-grained caching for common errors or redirects.
              # This can reduce the load on your origin and improve end-user
              # experience by reducing response latency.
              # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
              # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
              # the specified response code that lack any Cache-Control, Expires, or
              # Pragma: no-cache directives. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, negative caching applies to all responses
              # with the specified response code, and overrides any caching headers. By
              # default, Cloud CDN applies the following TTLs to these HTTP status codes:
              #
              # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
              # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
              # * 405 (Method Not Found), 501 (Not Implemented): 60s
              #
              # These defaults can be overridden in `negativeCachingPolicy`.
              # If not specified, Cloud CDN applies negative caching by default.
          "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
              # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
              # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
              # CDN's default cache TTLs. Note that when specifying an explicit
              # `negativeCachingPolicy`, you should take care to specify a cache TTL for
              # all response codes that you wish to cache. Cloud CDN will not apply any
              # default negative caching when a policy exists.
            { # Specify CDN TTLs for response error codes.
              "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                  # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                  # specified as values, and you cannot specify a status code more than
                  # once.
              "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                  # corresponding status code.
                  # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                  # objects may be evicted from the cache before the defined TTL.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
          ],
          "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
              # requests into a small number of requests to the origin. If not specified,
              # Cloud CDN applies request coalescing by default.
          "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
              # content with the origin, or when an error is encountered when refreshing
              # the cache.
              # This setting defines the default "max-stale" duration for any cached
              # responses that do not specify a max-stale directive. Stale responses that
              # exceed the TTL configured here will not be served. The default limit
              # (max-stale) is 86400s (1 day), which will allow stale content to be
              # served up to this limit beyond the max-age (or s-maxage) of a cached
              # response.
              # The maximum allowed value is 604800 (1 week).
              # Set this to zero (0) to disable serve-while-stale.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
        },
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
            #
            # Not supported when the URL map is bound to a target gRPC proxy.
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true
              # indicates that
              # the actual request can include user credentials. This field translates to
              # the Access-Control-Allow-Credentials header.
              #
              # Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
              # header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
              # header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
              # more information, see regular expression syntax.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
              #
              # Regular expressions can only be used when the loadBalancingScheme is
              # set to INTERNAL_SELF_MANAGED.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, disables the CORS policy.
              # The default value is false, which indicates that the CORS
              # policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
              # header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in
              # seconds. This field translates to the Access-Control-Max-Age
              # header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by a load balancer on a percentage of requests before sending
            # those requests to the backend service. Similarly requests from clients can
            # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
            # that are configured with a fault_injection_policy if:
            # 1. The traffic is generated by fault injection AND
            # 2. The fault injection is not a delay fault injection.
            # Fault injection is not supported with the classic Application Load Balancer
            # . To see which load balancers support fault injection,
            # see Load
            # balancing: Routing and traffic management features.
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by the load balancer on a percentage of requests before sending
            # those request to the backend service. Similarly requests from clients can be
            # aborted by the load balancer for a percentage of requests.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
              # injection.
            "httpStatus": 42, # The HTTP status code used to abort the request.
                #
                # The value must be from 200 to 599 inclusive.
                #
                # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                # according to this
                # mapping table. HTTP status 200 is mapped to gRPC status
                # UNKNOWN. Injecting an OK status is currently not supported by
                # Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                # that is aborted as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
              # injection, before being sent to a backend service.
              # request to the backend service as part of fault injection.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                # which a delay is introduced as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
            # Global EXTERNAL_MANAGED load balancer schemes.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route
            # dynamically processes and delivers images from the network edge.
            # Image Optimization is only available for Global External Application Load
            # Balancers.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route.
          "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
            # Unlike the timeout field where the timeout duration starts
            # from the time the request has been fully processed (known as*end-of-stream*),
            # the duration in this field is computed from the beginning of the stream
            # until the response has been processed, including all retries. A
            # stream that does not complete in this duration is closed.
            #
            # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
            # with the route.
            #
            # This field is only allowed if the Url map is used with backend services
            # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
            # are shadowed to a separate mirrored backend service. The load balancer does
            # not wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host / authority header is suffixed with-shadow.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # are shadowed to a separate mirrored backend service. The load balancer
            # doesn't wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host or authority header is suffixed with-shadow.
          "backendService": "A String", # The full or partial URL to the BackendService resource being
              # mirrored to.
              #
              # The backend service configured for a mirroring
              # policy must reference backends that are of the same type as the original
              # backend service matched in the URL map.
              #
              # Serverless NEG backends are not currently supported as a mirrored
              # backend service.
          "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
              # If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
              #
              # If not specified, will use the timeout set in theHttpRouteAction field.
              # If timeout in the HttpRouteAction field is not set, this field
              # uses the largest timeout
              # among all backend services associated with the route.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has the validateForProxyless field set to true.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
              # values are:
              #
              #    - 5xx: retry is attempted if the instance or endpoint
              #    responds with any 5xx response code, or if the instance or
              #    endpoint does not respond at all. For example, disconnects, reset, read
              #    timeout, connection failure, and refused streams.
              #    - gateway-error: Similar to 5xx, but only
              #    applies to response codes 502, 503 or504.
              #    - connect-failure: a retry is attempted on failures
              #    connecting to the instance or endpoint. For example, connection
              #    timeouts.
              #    - retriable-4xx: a retry is attempted if the instance
              #    or endpoint responds with a 4xx response code.
              #    The only error that you can retry is error code 409.
              #    - refused-stream: a retry is attempted if the instance
              #    or endpoint resets the stream with a REFUSED_STREAM error
              #    code. This reset type indicates that it is safe to retry.
              #    - cancelled: a retry is attempted if the gRPC status
              #    code in the response header is set to cancelled.
              #    - deadline-exceeded: a retry is attempted if the gRPC
              #    status code in the response header is set todeadline-exceeded.
              #    - internal: a retry is attempted if the gRPC
              #    status code in the response header is set tointernal.
              #    - resource-exhausted: a retry is attempted if the gRPC
              #    status code in the response header is set toresource-exhausted.
              #    - unavailable: a retry is attempted if the gRPC
              #    status code in the response header is set tounavailable.
              #
              # Only the following codes are supported when the URL map is bound to
              # target gRPC proxy that has validateForProxyless field set to true.
              #
              #    - cancelled
              #    - deadline-exceeded
              #    - internal
              #    - resource-exhausted
              #    - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
            # time the request has been fully processed (known as *end-of-stream*)
            # up until the response has been processed. Timeout includes
            # all retries.
            #
            # If not specified, this field uses the largest timeout among all backend
            # services associated with the route.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has validateForProxyless field set to true.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
            # to the matched service.
            #
            #  urlRewrite is the only action supported in UrlMaps
            # for classic Application Load Balancers.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # backend service.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
              # host header is replaced with contents of hostRewrite.
              #
              # The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
              # matching portion of the request's path is replaced bypathPrefixRewrite.
              #
              # The value must be from 1 to 1024 characters.
          "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
              # header) using the HTTP template syntax.
              #
              # A corresponding
              # path_template_match must be specified. Any template variables must exist in
              # the path_template_match field.
              #
              #
              #       - -At least one variable must be specified in the path_template_match
              #       field
              #    - You can omit variables from the rewritten URL
              #       - The * and ** operators cannot be matched
              #       unless they have a corresponding variable name - e.g.
              #       {format=*} or {var=**}.
              #
              # For example, a path_template_match of /static/{format=**}
              # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
              # rewrite, so that /{country}/{format}/{suffix=**} can be
              # rewritten as /content/{format}/{country}/{suffix}.
              #
              # At least
              # one non-empty routeRules[].matchRules[].path_template_match is
              # required.
              #
              # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
          "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
            "pathPattern": "A String", # The regular expression used to match against the URL path.
                # It uses RE2 syntax with the following constraints:
                #
                #
                #      - Any single character operators
                #      - Groups are allowed to have only submatch operator inside
                #      - Groups are allowed only without any char repetition, e.g.
                #      .*
                #      - Any char repetition, e.g. .*, is
                #      only allowed to be used in a single regex together with:
                #
                #
                #             - Empty string operators
                #             - Other repetitions
                #             - Ranges
                #             - Repetitions of ranges
                #
                #
                #      - Ranges are only allowed to have:
                #
                #
                #             - Character range
                #             - Digits range
                #             - Symbols listed in characters allowed for ranges
            "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                # the path.
          },
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
            # occurs. The weights determine the fraction of traffic that flows to
            # their corresponding backend service. If all traffic needs to
            # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
            #
            # After a backend service is identified and before forwarding
            # the request to
            # the backend service, advanced routing actions such as URL rewrites and
            # header transformations are applied depending on additional settings
            # specified in this HttpRouteAction.
          { # In contrast to a single BackendService in
              # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
              # multiple backend services. The volume of traffic for each
              # backend service is proportional to the weight specified
              # in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService
                # resource. Before
                # forwarding the request to backendService, the load balancer
                # applies any relevant headerActions specified as part of thisbackendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                # effect for the selected backendService.
                #
                # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                #
                # headerAction is not supported for load balancers that have
                # their loadBalancingScheme set to EXTERNAL.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # the request is passed along to the selected backendService.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                  # client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                # computed asweight / (sum of all weightedBackendService weights in routeAction).
                #
                # The selection of a backend service is determined only for new traffic.
                # Once a user's request has been directed to a backend service,
                # subsequent requests are sent to the same backend service as
                # determined by the backend service's session affinity policy.
                # Don't configure session affinity if you're using weighted traffic
                # splitting. If you do, the weighted traffic splitting configuration takes
                # precedence.
                #
                # The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to
          # which traffic is directed if none of the hostRules match.
          # If defaultRouteAction is also specified, advanced
          # routing actions, such as URL rewrites, take effect before sending the
          # request to the backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # defaultService has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
          # is redirected to a URL specified by defaultUrlRedirect.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
            # was supplied in the request.
            #
            # The value must be from 1 to 255
            # characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
            # set to HTTPS.
            # If set to false, the URL scheme of the redirected request
            # remains the same as that of the request.
            #
            # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
            #
            # The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
            # that was supplied in the request.
            #
            # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
            # the HttpRouteRuleMatch, retaining the remaining portion
            # of the URL before redirecting the request.
            #
            # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
            #
            # Supported values are:
            #
            #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
            #    to 301.
            #    - FOUND, which corresponds to 302.
            #    - SEE_OTHER which corresponds to 303.
            #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
            #    method is retained.
            #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
            #    method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original
            # URL is
            # removed before redirecting the request. If set to false, the
            # query portion of the original URL is retained.
            #
            # The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you
          # create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
          # This field is used in optimistic locking. This field is ignored when
          # inserting a UrlMap. An up-to-date fingerprint must be provided
          # in order to update the UrlMap, otherwise the request will
          # fail with error 412 conditionNotMet.
          #
          # To see the latest fingerprint, make a get() request to
          # retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
          # for the selected backendService.
          #
          # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
          #
          # headerAction is not supported for load balancers
          # that have
          # their loadBalancingScheme set to EXTERNAL.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
          # the request is passed along to the selected backendService.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
            # client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps
            # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with
              # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
              # that case, * must be the first character, and if followed by
              # anything, the immediate following character must be either -
              # or ..
              #
              # * based matching is not supported when the URL map is bound
              # to a target gRPC proxy that has the validateForProxyless field
              # set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
              # of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
          # defined by the server.
      "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
          # url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created.
          # The name must be 1-63 characters long, and comply withRFC1035.
          # Specifically, the name must be 1-63 characters long and match the regular
          # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
          # character must be a lowercase letter, and all following characters must
          # be a dash, lowercase letter, or digit, except the last character, which
          # cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService
            # from the longest-matched rule will serve the URL. If no rule was matched, the
            # default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
              # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
              #
              # This policy takes
              # effect at the PathMatcher level and applies only when no
              # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
              # in defaultCustomErrorResponsePolicy, then a policy defined for
              # the error code in UrlMap.defaultCustomErrorResponsePolicy
              # takes effect.
              #
              # For example, consider a UrlMap with the following
              # configuration:
              #
              #
              #      - UrlMap.defaultCustomErrorResponsePolicy is configured
              #      with policies for 5xx and 4xx errors
              #      - A RouteRule for /coming_soon/ is configured for the
              #      error code 404.
              #
              # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
              # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
              # the policy in RouteRule.customErrorResponsePolicy takes
              # effect. If any of the requests in this example encounter a 500
              # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
              #
              # When
              # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
              # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
              # a retry, if load balancer is successful in reaching the
              # service, the defaultCustomErrorResponsePolicy is ignored and
              # the response from the service is returned to the client.
              #
              # defaultCustomErrorResponsePolicy is supported only for
              # global external Application Load Balancers.
              # backend service or backend bucket responds with an error.
            "errorResponseRules": [ # Specifies rules for returning error responses.
                #
                # In a given policy, if you specify rules for both a range of error codes
                # as well as rules for specific error codes then rules with specific error
                # codes have a higher priority. For example, assume that you configure a rule
                # for 401 (Un-authorized) code, and another for all 4 series
                # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                # However if the backend service returns a 403, the rule for4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along
                  # with the custom error content and the response code returned by the backend
                  # service.
                "matchResponseCodes": [ # Valid values include:
                    #
                    #
                    #      - A number between 400 and 599: For example
                    #      401 or 503, in which case the load balancer
                    #      applies the policy if the error code exactly matches this value.
                    #      - 5xx: Load Balancer will apply the policy if the
                    #      backend service responds with any response code in the range of
                    #      500 to 599.
                    #    - 4xx: Load
                    #      Balancer will apply the policy if the backend service responds with any
                    #      response code in the range of 400 to
                    #      499.
                    #
                    # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                    # error content. If overrideResponseCode is not supplied, the
                    # same response code returned by the original backend bucket or backend
                    # service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                    #
                    # path must start
                    # with a leading slash. path cannot have trailing slashes.
                    #
                    # If the file is not available in backendBucket  or the
                    # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                    #
                    # The value must
                    # be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                # contains the custom error content. Examples are:
                #
                #
                #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - global/backendBuckets/myBackendBucket
                #
                # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                #
                # If load balancer cannot reach
                # the backendBucket, a simple Not Found Error will
                # be returned, with the original response code (oroverrideResponseCode if configured).
                #
                # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the
              # pathRules or routeRules match. The load balancer
              # performs advanced routing actions, such as URL rewrites and
              # header transformations, before forwarding the request to the
              # selected backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # URL maps for classic Application Load Balancers only support
              # the urlRewrite action within a path matcher'sdefaultRouteAction.
            "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                # property must be specified. This policy cannot be specified if any target
                # backend has Identity-Aware Proxy enabled.
              "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                  # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                  # header names can be specified. The cache is bypassed for all `cacheMode`
                  # values.
                "A String",
              ],
              "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                  # on the backend type: for Backend Services, the complete request URI is
                  # used; for Backend Buckets, the request URI is used without the protocol or
                  # host, and only query parameters known to Cloud Storage are included.
                  # Policy defined on Route Action.
                "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                    # parameters will be included. Either specify `excludedQueryParameters`
                    # or `includedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                  "A String",
                ],
                "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # host is never included in a Backend Bucket's cache key. Attempting to set
                    # it on a route that points exclusively to Backend Buckets will result in a
                    # configuration error.
                "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # protocol is never included in a Backend Bucket's cache key. Attempting to
                    # set on a route that points exclusively to Backend Buckets will result in
                    # a configuration error.
                "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                    # `includedQueryParameters` and `excludedQueryParameters`. If neither
                    # is set, the entire query string will be included. If false, the query
                    # string will be excluded from the cache key entirely.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                    # The name=value pair will be used in the cache key Cloud CDN generates.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket.
                    # Attempting to set it on a route that points exclusively to Backend
                    # Buckets will result in a configuration error. Up to 5 cookie names can be
                    # specified.
                  "A String",
                ],
                "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                  "A String",
                ],
                "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                    # parameters will be excluded. Either specify `includedQueryParameters`
                    # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                  "A String",
                ],
              },
              "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                  # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
              "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                  # content. This is used to clamp the max-age (or Expires) value sent to the
                  # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                  # is used for the response max-age directive, along with a "public"
                  # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                  # clamps the max-age from the origin (if specified), or else sets the
                  # response max-age directive to the lesser of the `clientTtl` and
                  # `defaultTtl`, and also ensures a "public" cache-control directive is
                  # present. The maximum allowed value is 31,622,400s (1 year). If not
                  # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                  # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                  # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                  # "always revalidate". The value of `defaultTtl` cannot be set to a value
                  # greater than that of `maxTtl`. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                  # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                  # accessed objects may be evicted from the cache before the defined TTL. If
                  # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                  # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                  # attempt to set a max-age or s-maxage higher than this, or an Expires header
                  # more than `maxTtl` seconds in the future will be capped at the value of
                  # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                  # Headers sent to the client will not be modified. Setting a TTL of "0" means
                  # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                  # Infrequently accessed objects may be evicted from the cache before the
                  # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                  # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                  # mode.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                  # to apply fine-grained caching for common errors or redirects.
                  # This can reduce the load on your origin and improve end-user
                  # experience by reducing response latency.
                  # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                  # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                  # the specified response code that lack any Cache-Control, Expires, or
                  # Pragma: no-cache directives. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, negative caching applies to all responses
                  # with the specified response code, and overrides any caching headers. By
                  # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                  #
                  # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                  # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                  # * 405 (Method Not Found), 501 (Not Implemented): 60s
                  #
                  # These defaults can be overridden in `negativeCachingPolicy`.
                  # If not specified, Cloud CDN applies negative caching by default.
              "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                  # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                  # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                  # CDN's default cache TTLs. Note that when specifying an explicit
                  # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                  # all response codes that you wish to cache. Cloud CDN will not apply any
                  # default negative caching when a policy exists.
                { # Specify CDN TTLs for response error codes.
                  "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                      # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                      # specified as values, and you cannot specify a status code more than
                      # once.
                  "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                      # corresponding status code.
                      # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                      # objects may be evicted from the cache before the defined TTL.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
              ],
              "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                  # requests into a small number of requests to the origin. If not specified,
                  # Cloud CDN applies request coalescing by default.
              "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                  # content with the origin, or when an error is encountered when refreshing
                  # the cache.
                  # This setting defines the default "max-stale" duration for any cached
                  # responses that do not specify a max-stale directive. Stale responses that
                  # exceed the TTL configured here will not be served. The default limit
                  # (max-stale) is 86400s (1 day), which will allow stale content to be
                  # served up to this limit beyond the max-age (or s-maxage) of a cached
                  # response.
                  # The maximum allowed value is 604800 (1 week).
                  # Set this to zero (0) to disable serve-while-stale.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
                #
                # Not supported when the URL map is bound to a target gRPC proxy.
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true
                  # indicates that
                  # the actual request can include user credentials. This field translates to
                  # the Access-Control-Allow-Credentials header.
                  #
                  # Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                  # header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                  # header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                  # more information, see regular expression syntax.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                  #
                  # Regular expressions can only be used when the loadBalancingScheme is
                  # set to INTERNAL_SELF_MANAGED.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, disables the CORS policy.
                  # The default value is false, which indicates that the CORS
                  # policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                  # header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                  # seconds. This field translates to the Access-Control-Max-Age
                  # header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by a load balancer on a percentage of requests before sending
                # those requests to the backend service. Similarly requests from clients can
                # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                # that are configured with a fault_injection_policy if:
                # 1. The traffic is generated by fault injection AND
                # 2. The fault injection is not a delay fault injection.
                # Fault injection is not supported with the classic Application Load Balancer
                # . To see which load balancers support fault injection,
                # see Load
                # balancing: Routing and traffic management features.
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by the load balancer on a percentage of requests before sending
                # those request to the backend service. Similarly requests from clients can be
                # aborted by the load balancer for a percentage of requests.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                  # injection.
                "httpStatus": 42, # The HTTP status code used to abort the request.
                    #
                    # The value must be from 200 to 599 inclusive.
                    #
                    # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                    # according to this
                    # mapping table. HTTP status 200 is mapped to gRPC status
                    # UNKNOWN. Injecting an OK status is currently not supported by
                    # Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                    # that is aborted as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                  # injection, before being sent to a backend service.
                  # request to the backend service as part of fault injection.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                    # which a delay is introduced as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                # Global EXTERNAL_MANAGED load balancer schemes.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route
                # dynamically processes and delivers images from the network edge.
                # Image Optimization is only available for Global External Application Load
                # Balancers.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route.
              "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                # Unlike the timeout field where the timeout duration starts
                # from the time the request has been fully processed (known as*end-of-stream*),
                # the duration in this field is computed from the beginning of the stream
                # until the response has been processed, including all retries. A
                # stream that does not complete in this duration is closed.
                #
                # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                # with the route.
                #
                # This field is only allowed if the Url map is used with backend services
                # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                # are shadowed to a separate mirrored backend service. The load balancer does
                # not wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host / authority header is suffixed with-shadow.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # are shadowed to a separate mirrored backend service. The load balancer
                # doesn't wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host or authority header is suffixed with-shadow.
              "backendService": "A String", # The full or partial URL to the BackendService resource being
                  # mirrored to.
                  #
                  # The backend service configured for a mirroring
                  # policy must reference backends that are of the same type as the original
                  # backend service matched in the URL map.
                  #
                  # Serverless NEG backends are not currently supported as a mirrored
                  # backend service.
              "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                  # If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                  #
                  # If not specified, will use the timeout set in theHttpRouteAction field.
                  # If timeout in the HttpRouteAction field is not set, this field
                  # uses the largest timeout
                  # among all backend services associated with the route.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                  # values are:
                  #
                  #    - 5xx: retry is attempted if the instance or endpoint
                  #    responds with any 5xx response code, or if the instance or
                  #    endpoint does not respond at all. For example, disconnects, reset, read
                  #    timeout, connection failure, and refused streams.
                  #    - gateway-error: Similar to 5xx, but only
                  #    applies to response codes 502, 503 or504.
                  #    - connect-failure: a retry is attempted on failures
                  #    connecting to the instance or endpoint. For example, connection
                  #    timeouts.
                  #    - retriable-4xx: a retry is attempted if the instance
                  #    or endpoint responds with a 4xx response code.
                  #    The only error that you can retry is error code 409.
                  #    - refused-stream: a retry is attempted if the instance
                  #    or endpoint resets the stream with a REFUSED_STREAM error
                  #    code. This reset type indicates that it is safe to retry.
                  #    - cancelled: a retry is attempted if the gRPC status
                  #    code in the response header is set to cancelled.
                  #    - deadline-exceeded: a retry is attempted if the gRPC
                  #    status code in the response header is set todeadline-exceeded.
                  #    - internal: a retry is attempted if the gRPC
                  #    status code in the response header is set tointernal.
                  #    - resource-exhausted: a retry is attempted if the gRPC
                  #    status code in the response header is set toresource-exhausted.
                  #    - unavailable: a retry is attempted if the gRPC
                  #    status code in the response header is set tounavailable.
                  #
                  # Only the following codes are supported when the URL map is bound to
                  # target gRPC proxy that has validateForProxyless field set to true.
                  #
                  #    - cancelled
                  #    - deadline-exceeded
                  #    - internal
                  #    - resource-exhausted
                  #    - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                # time the request has been fully processed (known as *end-of-stream*)
                # up until the response has been processed. Timeout includes
                # all retries.
                #
                # If not specified, this field uses the largest timeout among all backend
                # services associated with the route.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                # to the matched service.
                #
                #  urlRewrite is the only action supported in UrlMaps
                # for classic Application Load Balancers.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # backend service.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                  # host header is replaced with contents of hostRewrite.
                  #
                  # The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                  # matching portion of the request's path is replaced bypathPrefixRewrite.
                  #
                  # The value must be from 1 to 1024 characters.
              "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                  # header) using the HTTP template syntax.
                  #
                  # A corresponding
                  # path_template_match must be specified. Any template variables must exist in
                  # the path_template_match field.
                  #
                  #
                  #       - -At least one variable must be specified in the path_template_match
                  #       field
                  #    - You can omit variables from the rewritten URL
                  #       - The * and ** operators cannot be matched
                  #       unless they have a corresponding variable name - e.g.
                  #       {format=*} or {var=**}.
                  #
                  # For example, a path_template_match of /static/{format=**}
                  # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                  # rewrite, so that /{country}/{format}/{suffix=**} can be
                  # rewritten as /content/{format}/{country}/{suffix}.
                  #
                  # At least
                  # one non-empty routeRules[].matchRules[].path_template_match is
                  # required.
                  #
                  # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
              "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                "pathPattern": "A String", # The regular expression used to match against the URL path.
                    # It uses RE2 syntax with the following constraints:
                    #
                    #
                    #      - Any single character operators
                    #      - Groups are allowed to have only submatch operator inside
                    #      - Groups are allowed only without any char repetition, e.g.
                    #      .*
                    #      - Any char repetition, e.g. .*, is
                    #      only allowed to be used in a single regex together with:
                    #
                    #
                    #             - Empty string operators
                    #             - Other repetitions
                    #             - Ranges
                    #             - Repetitions of ranges
                    #
                    #
                    #      - Ranges are only allowed to have:
                    #
                    #
                    #             - Character range
                    #             - Digits range
                    #             - Symbols listed in characters allowed for ranges
                "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                    # the path.
              },
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                # occurs. The weights determine the fraction of traffic that flows to
                # their corresponding backend service. If all traffic needs to
                # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                #
                # After a backend service is identified and before forwarding
                # the request to
                # the backend service, advanced routing actions such as URL rewrites and
                # header transformations are applied depending on additional settings
                # specified in this HttpRouteAction.
              { # In contrast to a single BackendService in
                  # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                  # multiple backend services. The volume of traffic for each
                  # backend service is proportional to the weight specified
                  # in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService
                    # resource. Before
                    # forwarding the request to backendService, the load balancer
                    # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                    # effect for the selected backendService.
                    #
                    # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                    #
                    # headerAction is not supported for load balancers that have
                    # their loadBalancingScheme set to EXTERNAL.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # the request is passed along to the selected backendService.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                      # client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                    # computed asweight / (sum of all weightedBackendService weights in routeAction).
                    #
                    # The selection of a backend service is determined only for new traffic.
                    # Once a user's request has been directed to a backend service,
                    # subsequent requests are sent to the same backend service as
                    # determined by the backend service's session affinity policy.
                    # Don't configure session affinity if you're using weighted traffic
                    # splitting. If you do, the weighted traffic splitting configuration takes
                    # precedence.
                    #
                    # The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This
              # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
              # matched. For example, the
              # following are all valid URLs to a BackendService resource:
              #
              #
              #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
              #      - compute/v1/projects/project/global/backendServices/backendService
              #      - global/backendServices/backendService
              #
              #
              # If defaultRouteAction is also specified, advanced
              # routing actions, such as URL rewrites, take effect before sending the
              # request to the backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Authorization requires one or more of the following Google IAM permissions on the
              # specified resource default_service:
              #
              #
              #       - compute.backendBuckets.use
              #       - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
              # by defaultUrlRedirect.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                # was supplied in the request.
                #
                # The value must be from 1 to 255
                # characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                # set to HTTPS.
                # If set to false, the URL scheme of the redirected request
                # remains the same as that of the request.
                #
                # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                #
                # The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                # that was supplied in the request.
                #
                # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                # the HttpRouteRuleMatch, retaining the remaining portion
                # of the URL before redirecting the request.
                #
                # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                #
                # Supported values are:
                #
                #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                #    to 301.
                #    - FOUND, which corresponds to 302.
                #    - SEE_OTHER which corresponds to 303.
                #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                #    method is retained.
                #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                #    method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                # URL is
                # removed before redirecting the request. If set to false, the
                # query portion of the original URL is retained.
                #
                # The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
              # for the selected backend service.
              #
              # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
              #
              # HeaderAction is not supported for load balancers
              # that have
              # their loadBalancingScheme set to EXTERNAL.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
              # the request is passed along to the selected backendService.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                # client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules
              # when routing based on simple path matching is all that's required. A path
              # rule can only include a wildcard character (*) after a
              # forward slash character ("/").
              #
              # The order by which path rules are specified does not matter.
              # Matches are always done on the longest-path-first basis.
              #
              # For example: a pathRule with a path /a/b/c/* will match
              # before /a/b/* irrespective of the order in which those paths appear in this
              # list.
              #
              # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the PathRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A PathRule for /coming_soon/ is configured for the error
                  #      code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in PathRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with /
                  # and the only place a * is allowed is at the end following
                  # a /.  The string fed to the path matcher does not include
                  # any text after the first ? or #, and
                  # those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected
                  # backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a path rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
              # desired. routeRules are evaluated in order of priority, from
              # the lowest to highest number.
              #
              # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request
                # and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the RouteRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A RouteRule for /coming_soon/ is configured for the
                  #      error code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in RouteRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # When
                  # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                  # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                  # a retry, if load balancer is successful in reaching the
                  # service, the customErrorResponsePolicy is ignored and
                  # the response from the service is returned to the client.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule.
                  #
                  #
                  # The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                  # for the selected backendService.
                  #
                  # The headerAction value specified here is applied before the
                  # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                  #
                  # HeaderAction is not supported for load balancers
                  # that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterConfigs only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterMetadata only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                  # this routeRule when any of thematchRules are satisfied. However predicates within
                  # a given matchRule have AND semantics. All predicates
                  # within a matchRule must match for the request to
                  # match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching
                    # requests to an HttpRouteRule. All specified criteria must
                    # be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                      # that may be part of the original URL.
                      #
                      # fullPathMatch must be from 1 to 1024 characters.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                      # corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match.
                          #
                          # For matching against the HTTP request's authority, use a headerMatch
                          # with the header name ":authority".
                          #
                          # For matching a request's method, use the headerName ":method".
                          #
                          # When the URL map is bound to a target gRPC proxy that has
                          # the validateForProxyless field set to true, only
                          # non-binary
                          # user-specified custom metadata and the `content-type` header are supported.
                          # The following transport-level headers cannot be used in header matching
                          # rules:
                          # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                          # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                          # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                          # `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a
                          # match if the preceding match criteria are met. If set to true,
                          # the headerMatch is considered a match if the preceding
                          # match criteria are NOT met.
                          #
                          # The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The
                          # match takes place whether or not the request's header has a value.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                          # specified in rangeMatch. If the header does not contain an
                          # integer, number or is empty, the match fails.
                          #
                          # For example for a range [-5, 0]
                          #
                          #
                          #       - -3 will match.
                          #       - 0 will not match.
                          #       - 0.25 will not match.
                          #       - -3someString will not match.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # rangeMatch is not supported for load balancers
                          # that have loadBalancingScheme set to EXTERNAL.
                          # within the specified integer range.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                          # For more information about regular expression syntax, see Syntax.
                          #
                          # For matching against a port specified in the HTTP request, use a
                          # headerMatch with headerName set to PORT and a regular expression that
                          # satisfies the RFC2616 Host header's port specifier.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                      # matches are case sensitive.
                      #
                      # The default value is false.
                      #
                      # ignoreCase must not be used with regexMatch.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                      # configuration to a limited set of xDS
                      # compliant clients. In their xDS requests to the load balancer, xDS clients
                      # present node
                      # metadata. When there is a match, the relevant routing configuration
                      # is made available to those proxies.
                      #
                      # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                      # the metadata. If its filterMatchCriteria is set to
                      # MATCH_ALL, then all of its filterLabels must match with
                      # corresponding labels provided in the metadata. If multiple
                      # metadata filters are specified, all of them need to be
                      # satisfied in order to be considered a match.
                      #
                      # metadataFilters specified here is applied after those
                      # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                      #
                      # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing
                        # configuration to a limited set of load balancing proxies. Proxies and
                        # sidecars involved in load balancing would typically present metadata to the
                        # load balancers that need to match criteria specified here. If a match takes
                        # place, the relevant configuration is made available to those
                        # proxies.
                        #
                        # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                        # one of thefilterLabels must match the corresponding label provided in
                        # the metadata. If its filterMatchCriteria is set to
                        # MATCH_ALL, then all of its filterLabels must match with
                        # corresponding labels provided in the metadata.
                        #
                        # An example for using metadataFilters would be: if
                        # load balancing involves
                        # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided
                          # metadata based on filterMatchCriteria
                          #
                          # This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected
                            # to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label.
                              #
                              #  The name can have a maximum length of 1024 characters and must be at
                              # least 1 character long.
                          "value": "A String", # The value of the label must match the specified value.
                              #
                              # value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                          # within the list of filterLabels and contributes toward the
                          # overall metadataFilter match.
                          #
                          #  Supported values are:
                          #
                          #    - MATCH_ANY: at least one of the filterLabels
                          #    must have a matching label in the provided metadata.
                          #    - MATCH_ALL: all filterLabels must have
                          #    matching labels in the provided metadata.
                    },
                  ],
                  "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                      # the :path header after the query string is removed.
                      #
                      # A path template pattern can include variables and wildcards.
                      # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                      # matches a single path segment, and ** that matches zero or
                      # more path segments. The pattern must follow these rules:
                      #
                      #
                      #       - The value must be between 1 and 1024 characters.
                      #       - The pattern must start with a leading slash ("/").
                      #       - No more than 5 operators (variables or wildcards) may appear in
                      #       the pattern.
                      #
                      # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                      # set.
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                      # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                      #
                      # The value must be from 1 to 1024 characters.
                      #
                      # The * character inside a prefix match is
                      # treated as a literal character, not as a wildcard.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                      # used within a matchRule.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                      # match corresponding query parameters in the request.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter exactly matches the contents of exactMatch.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                          # the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                          # request contains the query parameter, irrespective of whether the
                          # parameter has a value or not.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter matches the regular expression specified byregexMatch. For
                          # more information about regular expression syntax, see Syntax.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                      # supplied with the original URL. For
                      # more information about regular expression syntax, see Syntax.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                      # (regional scope) or INTERNAL_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher,
                  # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                  # of priority, from the lowest to highest number. The priority of a
                  # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                  # that matches the request is applied.
                  #
                  #
                  # You cannot configure two or more routeRules with the same priority.
                  # Priority for each rule must be set to a number from 0 to 2147483647
                  # inclusive.
                  #
                  #
                  # Priority numbers can have gaps, which enable you to add or remove rules
                  # in the future without affecting the rest of the rules. For example, 1, 2,
                  # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                  # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                  # without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a route rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
          # This field is not applicable to global URL maps.
          # You must specify this field as part of the HTTP request URL. It is
          # not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
        "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
          "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
          "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
        },
      },
      "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
          # maximum of 100 tests per UrlMap.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
              # routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
              # containing the scheme, host, path and query parameters.
              #
              # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
              # the load balancer to backends. For rules with urlRewrite,
              # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
              #
              # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
              # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
              # If urlRedirect specifies strip_query, the test
              # passes only if expectedOutputUrl does not contain any query
              # parameters.
              #
              # expectedOutputUrl is optional whenservice is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
              # load balancer's redirect response.
              #
              # expectedRedirectResponseCode cannot be set whenservice is set.
          "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
              # being tested.
              # [Deprecated] This field is deprecated.
              # Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains
              # a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header,
              # then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource
              # the given URL should be mapped to.
              #
              # The service field cannot
              # be set if expectedRedirectResponseCode is set.
        },
      ],
    }

`insert(project, body=None, requestId=None, x__xgafv=None)`

    Creates a UrlMap resource in the specified project using
    the data included in the request.

    Args:
      project: string, Project ID for this request. (required)
      body: object, The request body.
        The object takes the form of:

    { # Represents a URL Map resource.
        #
        # Compute Engine has two URL Map resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
        # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
        #
        # A URL map resource is a component of certain types of cloud load balancers
        # and Traffic Director:
        #
        # * urlMaps are used by global external Application Load
        # Balancers, classic Application Load Balancers, and cross-region internal
        # Application Load Balancers.
        # * regionUrlMaps are used by internal Application Load Balancers,
        # regional external Application Load Balancers and regional internal
        # Application Load Balancers.
        #
        # For a list of supported URL map features by the load balancer type, see the
        # Load balancing features: Routing and traffic management table.
        #
        # For a list of supported URL map features for Traffic Director, see the
        # Traffic Director features: Routing and traffic management table.
        #
        # This resource defines mappings from hostnames and URL paths to either a
        # backend service or a backend bucket.
        #
        # To use the global urlMaps resource, the backend service must
        # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
        # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
        # information, read URL
        # Map Concepts.
      "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
          # text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
          # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
          #
          # This policy takes
          # effect at the load balancer level and applies only when no policy has been
          # defined for the error code at lower levels like PathMatcher, RouteRule and
          # PathRule within this UrlMap.
          #
          # For example, consider a UrlMap with the
          # following configuration:
          #
          #
          #      - defaultCustomErrorResponsePolicy containing policies for
          #      responding to 5xx and 4xx errors
          #      - A PathMatcher configured for *.example.com has
          #      defaultCustomErrorResponsePolicy for 4xx.
          #
          # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
          # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
          # a request that does not match any host in *.example.com such
          # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
          # takes effect.
          #
          # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
          # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
          # a retry, if load balancer is successful in reaching the
          # service, the defaultCustomErrorResponsePolicy is ignored and
          # the response from the service is returned to the client.
          #
          # defaultCustomErrorResponsePolicy is supported only for
          # global external Application Load Balancers.
          # backend service or backend bucket responds with an error.
        "errorResponseRules": [ # Specifies rules for returning error responses.
            #
            # In a given policy, if you specify rules for both a range of error codes
            # as well as rules for specific error codes then rules with specific error
            # codes have a higher priority. For example, assume that you configure a rule
            # for 401 (Un-authorized) code, and another for all 4 series
            # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
            # However if the backend service returns a 403, the rule for4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along
              # with the custom error content and the response code returned by the backend
              # service.
            "matchResponseCodes": [ # Valid values include:
                #
                #
                #      - A number between 400 and 599: For example
                #      401 or 503, in which case the load balancer
                #      applies the policy if the error code exactly matches this value.
                #      - 5xx: Load Balancer will apply the policy if the
                #      backend service responds with any response code in the range of
                #      500 to 599.
                #    - 4xx: Load
                #      Balancer will apply the policy if the backend service responds with any
                #      response code in the range of 400 to
                #      499.
                #
                # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                # error content. If overrideResponseCode is not supplied, the
                # same response code returned by the original backend bucket or backend
                # service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                #
                # path must start
                # with a leading slash. path cannot have trailing slashes.
                #
                # If the file is not available in backendBucket  or the
                # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                #
                # The value must
                # be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that
            # contains the custom error content. Examples are:
            #
            #
            #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - global/backendBuckets/myBackendBucket
            #
            # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
            # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
            #
            # If load balancer cannot reach
            # the backendBucket, a simple Not Found Error will
            # be returned, with the original response code (oroverrideResponseCode if configured).
            #
            # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the
          # hostRules match. The load balancer performs advanced routing
          # actions, such as URL rewrites and header transformations, before forwarding
          # the request to the selected backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          #  URL maps for classic Application Load Balancers only support
          # the urlRewrite action within defaultRouteAction.
          #
          #
          # defaultRouteAction has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
        "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
            # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
            # property must be specified. This policy cannot be specified if any target
            # backend has Identity-Aware Proxy enabled.
          "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
              # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
              # header names can be specified. The cache is bypassed for all `cacheMode`
              # values.
            "A String",
          ],
          "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
              # on the backend type: for Backend Services, the complete request URI is
              # used; for Backend Buckets, the request URI is used without the protocol or
              # host, and only query parameters known to Cloud Storage are included.
              # Policy defined on Route Action.
            "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                # parameters will be included. Either specify `excludedQueryParameters`
                # or `includedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
              "A String",
            ],
            "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # host is never included in a Backend Bucket's cache key. Attempting to set
                # it on a route that points exclusively to Backend Buckets will result in a
                # configuration error.
            "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # protocol is never included in a Backend Bucket's cache key. Attempting to
                # set on a route that points exclusively to Backend Buckets will result in
                # a configuration error.
            "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                # `includedQueryParameters` and `excludedQueryParameters`. If neither
                # is set, the entire query string will be included. If false, the query
                # string will be excluded from the cache key entirely.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
            "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                # The name=value pair will be used in the cache key Cloud CDN generates.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket.
                # Attempting to set it on a route that points exclusively to Backend
                # Buckets will result in a configuration error. Up to 5 cookie names can be
                # specified.
              "A String",
            ],
            "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
              "A String",
            ],
            "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                # parameters will be excluded. Either specify `includedQueryParameters`
                # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
              "A String",
            ],
          },
          "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
              # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
          "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
              # content. This is used to clamp the max-age (or Expires) value sent to the
              # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
              # is used for the response max-age directive, along with a "public"
              # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
              # clamps the max-age from the origin (if specified), or else sets the
              # response max-age directive to the lesser of the `clientTtl` and
              # `defaultTtl`, and also ensures a "public" cache-control directive is
              # present. The maximum allowed value is 31,622,400s (1 year). If not
              # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
              # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
              # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
              # "always revalidate". The value of `defaultTtl` cannot be set to a value
              # greater than that of `maxTtl`. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
              # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
              # accessed objects may be evicted from the cache before the defined TTL. If
              # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
              # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
              # attempt to set a max-age or s-maxage higher than this, or an Expires header
              # more than `maxTtl` seconds in the future will be capped at the value of
              # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
              # Headers sent to the client will not be modified. Setting a TTL of "0" means
              # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
              # Infrequently accessed objects may be evicted from the cache before the
              # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
              # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
              # mode.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
              # to apply fine-grained caching for common errors or redirects.
              # This can reduce the load on your origin and improve end-user
              # experience by reducing response latency.
              # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
              # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
              # the specified response code that lack any Cache-Control, Expires, or
              # Pragma: no-cache directives. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, negative caching applies to all responses
              # with the specified response code, and overrides any caching headers. By
              # default, Cloud CDN applies the following TTLs to these HTTP status codes:
              #
              # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
              # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
              # * 405 (Method Not Found), 501 (Not Implemented): 60s
              #
              # These defaults can be overridden in `negativeCachingPolicy`.
              # If not specified, Cloud CDN applies negative caching by default.
          "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
              # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
              # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
              # CDN's default cache TTLs. Note that when specifying an explicit
              # `negativeCachingPolicy`, you should take care to specify a cache TTL for
              # all response codes that you wish to cache. Cloud CDN will not apply any
              # default negative caching when a policy exists.
            { # Specify CDN TTLs for response error codes.
              "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                  # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                  # specified as values, and you cannot specify a status code more than
                  # once.
              "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                  # corresponding status code.
                  # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                  # objects may be evicted from the cache before the defined TTL.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
          ],
          "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
              # requests into a small number of requests to the origin. If not specified,
              # Cloud CDN applies request coalescing by default.
          "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
              # content with the origin, or when an error is encountered when refreshing
              # the cache.
              # This setting defines the default "max-stale" duration for any cached
              # responses that do not specify a max-stale directive. Stale responses that
              # exceed the TTL configured here will not be served. The default limit
              # (max-stale) is 86400s (1 day), which will allow stale content to be
              # served up to this limit beyond the max-age (or s-maxage) of a cached
              # response.
              # The maximum allowed value is 604800 (1 week).
              # Set this to zero (0) to disable serve-while-stale.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
        },
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
            #
            # Not supported when the URL map is bound to a target gRPC proxy.
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true
              # indicates that
              # the actual request can include user credentials. This field translates to
              # the Access-Control-Allow-Credentials header.
              #
              # Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
              # header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
              # header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
              # more information, see regular expression syntax.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
              #
              # Regular expressions can only be used when the loadBalancingScheme is
              # set to INTERNAL_SELF_MANAGED.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, disables the CORS policy.
              # The default value is false, which indicates that the CORS
              # policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
              # header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in
              # seconds. This field translates to the Access-Control-Max-Age
              # header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by a load balancer on a percentage of requests before sending
            # those requests to the backend service. Similarly requests from clients can
            # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
            # that are configured with a fault_injection_policy if:
            # 1. The traffic is generated by fault injection AND
            # 2. The fault injection is not a delay fault injection.
            # Fault injection is not supported with the classic Application Load Balancer
            # . To see which load balancers support fault injection,
            # see Load
            # balancing: Routing and traffic management features.
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by the load balancer on a percentage of requests before sending
            # those request to the backend service. Similarly requests from clients can be
            # aborted by the load balancer for a percentage of requests.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
              # injection.
            "httpStatus": 42, # The HTTP status code used to abort the request.
                #
                # The value must be from 200 to 599 inclusive.
                #
                # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                # according to this
                # mapping table. HTTP status 200 is mapped to gRPC status
                # UNKNOWN. Injecting an OK status is currently not supported by
                # Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                # that is aborted as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
              # injection, before being sent to a backend service.
              # request to the backend service as part of fault injection.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                # which a delay is introduced as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
            # Global EXTERNAL_MANAGED load balancer schemes.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route
            # dynamically processes and delivers images from the network edge.
            # Image Optimization is only available for Global External Application Load
            # Balancers.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route.
          "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
            # Unlike the timeout field where the timeout duration starts
            # from the time the request has been fully processed (known as*end-of-stream*),
            # the duration in this field is computed from the beginning of the stream
            # until the response has been processed, including all retries. A
            # stream that does not complete in this duration is closed.
            #
            # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
            # with the route.
            #
            # This field is only allowed if the Url map is used with backend services
            # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
            # are shadowed to a separate mirrored backend service. The load balancer does
            # not wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host / authority header is suffixed with-shadow.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # are shadowed to a separate mirrored backend service. The load balancer
            # doesn't wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host or authority header is suffixed with-shadow.
          "backendService": "A String", # The full or partial URL to the BackendService resource being
              # mirrored to.
              #
              # The backend service configured for a mirroring
              # policy must reference backends that are of the same type as the original
              # backend service matched in the URL map.
              #
              # Serverless NEG backends are not currently supported as a mirrored
              # backend service.
          "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
              # If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
              #
              # If not specified, will use the timeout set in theHttpRouteAction field.
              # If timeout in the HttpRouteAction field is not set, this field
              # uses the largest timeout
              # among all backend services associated with the route.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has the validateForProxyless field set to true.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
              # values are:
              #
              #    - 5xx: retry is attempted if the instance or endpoint
              #    responds with any 5xx response code, or if the instance or
              #    endpoint does not respond at all. For example, disconnects, reset, read
              #    timeout, connection failure, and refused streams.
              #    - gateway-error: Similar to 5xx, but only
              #    applies to response codes 502, 503 or504.
              #    - connect-failure: a retry is attempted on failures
              #    connecting to the instance or endpoint. For example, connection
              #    timeouts.
              #    - retriable-4xx: a retry is attempted if the instance
              #    or endpoint responds with a 4xx response code.
              #    The only error that you can retry is error code 409.
              #    - refused-stream: a retry is attempted if the instance
              #    or endpoint resets the stream with a REFUSED_STREAM error
              #    code. This reset type indicates that it is safe to retry.
              #    - cancelled: a retry is attempted if the gRPC status
              #    code in the response header is set to cancelled.
              #    - deadline-exceeded: a retry is attempted if the gRPC
              #    status code in the response header is set todeadline-exceeded.
              #    - internal: a retry is attempted if the gRPC
              #    status code in the response header is set tointernal.
              #    - resource-exhausted: a retry is attempted if the gRPC
              #    status code in the response header is set toresource-exhausted.
              #    - unavailable: a retry is attempted if the gRPC
              #    status code in the response header is set tounavailable.
              #
              # Only the following codes are supported when the URL map is bound to
              # target gRPC proxy that has validateForProxyless field set to true.
              #
              #    - cancelled
              #    - deadline-exceeded
              #    - internal
              #    - resource-exhausted
              #    - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
            # time the request has been fully processed (known as *end-of-stream*)
            # up until the response has been processed. Timeout includes
            # all retries.
            #
            # If not specified, this field uses the largest timeout among all backend
            # services associated with the route.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has validateForProxyless field set to true.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
            # to the matched service.
            #
            #  urlRewrite is the only action supported in UrlMaps
            # for classic Application Load Balancers.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # backend service.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
              # host header is replaced with contents of hostRewrite.
              #
              # The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
              # matching portion of the request's path is replaced bypathPrefixRewrite.
              #
              # The value must be from 1 to 1024 characters.
          "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
              # header) using the HTTP template syntax.
              #
              # A corresponding
              # path_template_match must be specified. Any template variables must exist in
              # the path_template_match field.
              #
              #
              #       - -At least one variable must be specified in the path_template_match
              #       field
              #    - You can omit variables from the rewritten URL
              #       - The * and ** operators cannot be matched
              #       unless they have a corresponding variable name - e.g.
              #       {format=*} or {var=**}.
              #
              # For example, a path_template_match of /static/{format=**}
              # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
              # rewrite, so that /{country}/{format}/{suffix=**} can be
              # rewritten as /content/{format}/{country}/{suffix}.
              #
              # At least
              # one non-empty routeRules[].matchRules[].path_template_match is
              # required.
              #
              # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
          "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
            "pathPattern": "A String", # The regular expression used to match against the URL path.
                # It uses RE2 syntax with the following constraints:
                #
                #
                #      - Any single character operators
                #      - Groups are allowed to have only submatch operator inside
                #      - Groups are allowed only without any char repetition, e.g.
                #      .*
                #      - Any char repetition, e.g. .*, is
                #      only allowed to be used in a single regex together with:
                #
                #
                #             - Empty string operators
                #             - Other repetitions
                #             - Ranges
                #             - Repetitions of ranges
                #
                #
                #      - Ranges are only allowed to have:
                #
                #
                #             - Character range
                #             - Digits range
                #             - Symbols listed in characters allowed for ranges
            "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                # the path.
          },
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
            # occurs. The weights determine the fraction of traffic that flows to
            # their corresponding backend service. If all traffic needs to
            # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
            #
            # After a backend service is identified and before forwarding
            # the request to
            # the backend service, advanced routing actions such as URL rewrites and
            # header transformations are applied depending on additional settings
            # specified in this HttpRouteAction.
          { # In contrast to a single BackendService in
              # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
              # multiple backend services. The volume of traffic for each
              # backend service is proportional to the weight specified
              # in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService
                # resource. Before
                # forwarding the request to backendService, the load balancer
                # applies any relevant headerActions specified as part of thisbackendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                # effect for the selected backendService.
                #
                # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                #
                # headerAction is not supported for load balancers that have
                # their loadBalancingScheme set to EXTERNAL.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # the request is passed along to the selected backendService.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                  # client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                # computed asweight / (sum of all weightedBackendService weights in routeAction).
                #
                # The selection of a backend service is determined only for new traffic.
                # Once a user's request has been directed to a backend service,
                # subsequent requests are sent to the same backend service as
                # determined by the backend service's session affinity policy.
                # Don't configure session affinity if you're using weighted traffic
                # splitting. If you do, the weighted traffic splitting configuration takes
                # precedence.
                #
                # The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to
          # which traffic is directed if none of the hostRules match.
          # If defaultRouteAction is also specified, advanced
          # routing actions, such as URL rewrites, take effect before sending the
          # request to the backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # defaultService has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
          # is redirected to a URL specified by defaultUrlRedirect.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
            # was supplied in the request.
            #
            # The value must be from 1 to 255
            # characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
            # set to HTTPS.
            # If set to false, the URL scheme of the redirected request
            # remains the same as that of the request.
            #
            # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
            #
            # The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
            # that was supplied in the request.
            #
            # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
            # the HttpRouteRuleMatch, retaining the remaining portion
            # of the URL before redirecting the request.
            #
            # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
            #
            # Supported values are:
            #
            #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
            #    to 301.
            #    - FOUND, which corresponds to 302.
            #    - SEE_OTHER which corresponds to 303.
            #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
            #    method is retained.
            #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
            #    method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original
            # URL is
            # removed before redirecting the request. If set to false, the
            # query portion of the original URL is retained.
            #
            # The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you
          # create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
          # This field is used in optimistic locking. This field is ignored when
          # inserting a UrlMap. An up-to-date fingerprint must be provided
          # in order to update the UrlMap, otherwise the request will
          # fail with error 412 conditionNotMet.
          #
          # To see the latest fingerprint, make a get() request to
          # retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
          # for the selected backendService.
          #
          # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
          #
          # headerAction is not supported for load balancers
          # that have
          # their loadBalancingScheme set to EXTERNAL.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
          # the request is passed along to the selected backendService.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
            # client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps
            # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with
              # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
              # that case, * must be the first character, and if followed by
              # anything, the immediate following character must be either -
              # or ..
              #
              # * based matching is not supported when the URL map is bound
              # to a target gRPC proxy that has the validateForProxyless field
              # set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
              # of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
          # defined by the server.
      "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
          # url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created.
          # The name must be 1-63 characters long, and comply withRFC1035.
          # Specifically, the name must be 1-63 characters long and match the regular
          # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
          # character must be a lowercase letter, and all following characters must
          # be a dash, lowercase letter, or digit, except the last character, which
          # cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService
            # from the longest-matched rule will serve the URL. If no rule was matched, the
            # default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
              # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
              #
              # This policy takes
              # effect at the PathMatcher level and applies only when no
              # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
              # in defaultCustomErrorResponsePolicy, then a policy defined for
              # the error code in UrlMap.defaultCustomErrorResponsePolicy
              # takes effect.
              #
              # For example, consider a UrlMap with the following
              # configuration:
              #
              #
              #      - UrlMap.defaultCustomErrorResponsePolicy is configured
              #      with policies for 5xx and 4xx errors
              #      - A RouteRule for /coming_soon/ is configured for the
              #      error code 404.
              #
              # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
              # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
              # the policy in RouteRule.customErrorResponsePolicy takes
              # effect. If any of the requests in this example encounter a 500
              # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
              #
              # When
              # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
              # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
              # a retry, if load balancer is successful in reaching the
              # service, the defaultCustomErrorResponsePolicy is ignored and
              # the response from the service is returned to the client.
              #
              # defaultCustomErrorResponsePolicy is supported only for
              # global external Application Load Balancers.
              # backend service or backend bucket responds with an error.
            "errorResponseRules": [ # Specifies rules for returning error responses.
                #
                # In a given policy, if you specify rules for both a range of error codes
                # as well as rules for specific error codes then rules with specific error
                # codes have a higher priority. For example, assume that you configure a rule
                # for 401 (Un-authorized) code, and another for all 4 series
                # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                # However if the backend service returns a 403, the rule for4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along
                  # with the custom error content and the response code returned by the backend
                  # service.
                "matchResponseCodes": [ # Valid values include:
                    #
                    #
                    #      - A number between 400 and 599: For example
                    #      401 or 503, in which case the load balancer
                    #      applies the policy if the error code exactly matches this value.
                    #      - 5xx: Load Balancer will apply the policy if the
                    #      backend service responds with any response code in the range of
                    #      500 to 599.
                    #    - 4xx: Load
                    #      Balancer will apply the policy if the backend service responds with any
                    #      response code in the range of 400 to
                    #      499.
                    #
                    # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                    # error content. If overrideResponseCode is not supplied, the
                    # same response code returned by the original backend bucket or backend
                    # service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                    #
                    # path must start
                    # with a leading slash. path cannot have trailing slashes.
                    #
                    # If the file is not available in backendBucket  or the
                    # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                    #
                    # The value must
                    # be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                # contains the custom error content. Examples are:
                #
                #
                #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - global/backendBuckets/myBackendBucket
                #
                # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                #
                # If load balancer cannot reach
                # the backendBucket, a simple Not Found Error will
                # be returned, with the original response code (oroverrideResponseCode if configured).
                #
                # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the
              # pathRules or routeRules match. The load balancer
              # performs advanced routing actions, such as URL rewrites and
              # header transformations, before forwarding the request to the
              # selected backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # URL maps for classic Application Load Balancers only support
              # the urlRewrite action within a path matcher'sdefaultRouteAction.
            "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                # property must be specified. This policy cannot be specified if any target
                # backend has Identity-Aware Proxy enabled.
              "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                  # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                  # header names can be specified. The cache is bypassed for all `cacheMode`
                  # values.
                "A String",
              ],
              "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                  # on the backend type: for Backend Services, the complete request URI is
                  # used; for Backend Buckets, the request URI is used without the protocol or
                  # host, and only query parameters known to Cloud Storage are included.
                  # Policy defined on Route Action.
                "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                    # parameters will be included. Either specify `excludedQueryParameters`
                    # or `includedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                  "A String",
                ],
                "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # host is never included in a Backend Bucket's cache key. Attempting to set
                    # it on a route that points exclusively to Backend Buckets will result in a
                    # configuration error.
                "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # protocol is never included in a Backend Bucket's cache key. Attempting to
                    # set on a route that points exclusively to Backend Buckets will result in
                    # a configuration error.
                "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                    # `includedQueryParameters` and `excludedQueryParameters`. If neither
                    # is set, the entire query string will be included. If false, the query
                    # string will be excluded from the cache key entirely.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                    # The name=value pair will be used in the cache key Cloud CDN generates.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket.
                    # Attempting to set it on a route that points exclusively to Backend
                    # Buckets will result in a configuration error. Up to 5 cookie names can be
                    # specified.
                  "A String",
                ],
                "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                  "A String",
                ],
                "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                    # parameters will be excluded. Either specify `includedQueryParameters`
                    # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                  "A String",
                ],
              },
              "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                  # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
              "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                  # content. This is used to clamp the max-age (or Expires) value sent to the
                  # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                  # is used for the response max-age directive, along with a "public"
                  # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                  # clamps the max-age from the origin (if specified), or else sets the
                  # response max-age directive to the lesser of the `clientTtl` and
                  # `defaultTtl`, and also ensures a "public" cache-control directive is
                  # present. The maximum allowed value is 31,622,400s (1 year). If not
                  # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                  # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                  # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                  # "always revalidate". The value of `defaultTtl` cannot be set to a value
                  # greater than that of `maxTtl`. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                  # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                  # accessed objects may be evicted from the cache before the defined TTL. If
                  # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                  # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                  # attempt to set a max-age or s-maxage higher than this, or an Expires header
                  # more than `maxTtl` seconds in the future will be capped at the value of
                  # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                  # Headers sent to the client will not be modified. Setting a TTL of "0" means
                  # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                  # Infrequently accessed objects may be evicted from the cache before the
                  # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                  # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                  # mode.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                  # to apply fine-grained caching for common errors or redirects.
                  # This can reduce the load on your origin and improve end-user
                  # experience by reducing response latency.
                  # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                  # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                  # the specified response code that lack any Cache-Control, Expires, or
                  # Pragma: no-cache directives. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, negative caching applies to all responses
                  # with the specified response code, and overrides any caching headers. By
                  # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                  #
                  # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                  # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                  # * 405 (Method Not Found), 501 (Not Implemented): 60s
                  #
                  # These defaults can be overridden in `negativeCachingPolicy`.
                  # If not specified, Cloud CDN applies negative caching by default.
              "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                  # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                  # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                  # CDN's default cache TTLs. Note that when specifying an explicit
                  # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                  # all response codes that you wish to cache. Cloud CDN will not apply any
                  # default negative caching when a policy exists.
                { # Specify CDN TTLs for response error codes.
                  "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                      # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                      # specified as values, and you cannot specify a status code more than
                      # once.
                  "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                      # corresponding status code.
                      # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                      # objects may be evicted from the cache before the defined TTL.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
              ],
              "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                  # requests into a small number of requests to the origin. If not specified,
                  # Cloud CDN applies request coalescing by default.
              "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                  # content with the origin, or when an error is encountered when refreshing
                  # the cache.
                  # This setting defines the default "max-stale" duration for any cached
                  # responses that do not specify a max-stale directive. Stale responses that
                  # exceed the TTL configured here will not be served. The default limit
                  # (max-stale) is 86400s (1 day), which will allow stale content to be
                  # served up to this limit beyond the max-age (or s-maxage) of a cached
                  # response.
                  # The maximum allowed value is 604800 (1 week).
                  # Set this to zero (0) to disable serve-while-stale.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
                #
                # Not supported when the URL map is bound to a target gRPC proxy.
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true
                  # indicates that
                  # the actual request can include user credentials. This field translates to
                  # the Access-Control-Allow-Credentials header.
                  #
                  # Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                  # header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                  # header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                  # more information, see regular expression syntax.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                  #
                  # Regular expressions can only be used when the loadBalancingScheme is
                  # set to INTERNAL_SELF_MANAGED.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, disables the CORS policy.
                  # The default value is false, which indicates that the CORS
                  # policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                  # header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                  # seconds. This field translates to the Access-Control-Max-Age
                  # header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by a load balancer on a percentage of requests before sending
                # those requests to the backend service. Similarly requests from clients can
                # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                # that are configured with a fault_injection_policy if:
                # 1. The traffic is generated by fault injection AND
                # 2. The fault injection is not a delay fault injection.
                # Fault injection is not supported with the classic Application Load Balancer
                # . To see which load balancers support fault injection,
                # see Load
                # balancing: Routing and traffic management features.
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by the load balancer on a percentage of requests before sending
                # those request to the backend service. Similarly requests from clients can be
                # aborted by the load balancer for a percentage of requests.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                  # injection.
                "httpStatus": 42, # The HTTP status code used to abort the request.
                    #
                    # The value must be from 200 to 599 inclusive.
                    #
                    # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                    # according to this
                    # mapping table. HTTP status 200 is mapped to gRPC status
                    # UNKNOWN. Injecting an OK status is currently not supported by
                    # Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                    # that is aborted as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                  # injection, before being sent to a backend service.
                  # request to the backend service as part of fault injection.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                    # which a delay is introduced as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                # Global EXTERNAL_MANAGED load balancer schemes.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route
                # dynamically processes and delivers images from the network edge.
                # Image Optimization is only available for Global External Application Load
                # Balancers.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route.
              "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                # Unlike the timeout field where the timeout duration starts
                # from the time the request has been fully processed (known as*end-of-stream*),
                # the duration in this field is computed from the beginning of the stream
                # until the response has been processed, including all retries. A
                # stream that does not complete in this duration is closed.
                #
                # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                # with the route.
                #
                # This field is only allowed if the Url map is used with backend services
                # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                # are shadowed to a separate mirrored backend service. The load balancer does
                # not wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host / authority header is suffixed with-shadow.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # are shadowed to a separate mirrored backend service. The load balancer
                # doesn't wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host or authority header is suffixed with-shadow.
              "backendService": "A String", # The full or partial URL to the BackendService resource being
                  # mirrored to.
                  #
                  # The backend service configured for a mirroring
                  # policy must reference backends that are of the same type as the original
                  # backend service matched in the URL map.
                  #
                  # Serverless NEG backends are not currently supported as a mirrored
                  # backend service.
              "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                  # If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                  #
                  # If not specified, will use the timeout set in theHttpRouteAction field.
                  # If timeout in the HttpRouteAction field is not set, this field
                  # uses the largest timeout
                  # among all backend services associated with the route.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                  # values are:
                  #
                  #    - 5xx: retry is attempted if the instance or endpoint
                  #    responds with any 5xx response code, or if the instance or
                  #    endpoint does not respond at all. For example, disconnects, reset, read
                  #    timeout, connection failure, and refused streams.
                  #    - gateway-error: Similar to 5xx, but only
                  #    applies to response codes 502, 503 or504.
                  #    - connect-failure: a retry is attempted on failures
                  #    connecting to the instance or endpoint. For example, connection
                  #    timeouts.
                  #    - retriable-4xx: a retry is attempted if the instance
                  #    or endpoint responds with a 4xx response code.
                  #    The only error that you can retry is error code 409.
                  #    - refused-stream: a retry is attempted if the instance
                  #    or endpoint resets the stream with a REFUSED_STREAM error
                  #    code. This reset type indicates that it is safe to retry.
                  #    - cancelled: a retry is attempted if the gRPC status
                  #    code in the response header is set to cancelled.
                  #    - deadline-exceeded: a retry is attempted if the gRPC
                  #    status code in the response header is set todeadline-exceeded.
                  #    - internal: a retry is attempted if the gRPC
                  #    status code in the response header is set tointernal.
                  #    - resource-exhausted: a retry is attempted if the gRPC
                  #    status code in the response header is set toresource-exhausted.
                  #    - unavailable: a retry is attempted if the gRPC
                  #    status code in the response header is set tounavailable.
                  #
                  # Only the following codes are supported when the URL map is bound to
                  # target gRPC proxy that has validateForProxyless field set to true.
                  #
                  #    - cancelled
                  #    - deadline-exceeded
                  #    - internal
                  #    - resource-exhausted
                  #    - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                # time the request has been fully processed (known as *end-of-stream*)
                # up until the response has been processed. Timeout includes
                # all retries.
                #
                # If not specified, this field uses the largest timeout among all backend
                # services associated with the route.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                # to the matched service.
                #
                #  urlRewrite is the only action supported in UrlMaps
                # for classic Application Load Balancers.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # backend service.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                  # host header is replaced with contents of hostRewrite.
                  #
                  # The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                  # matching portion of the request's path is replaced bypathPrefixRewrite.
                  #
                  # The value must be from 1 to 1024 characters.
              "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                  # header) using the HTTP template syntax.
                  #
                  # A corresponding
                  # path_template_match must be specified. Any template variables must exist in
                  # the path_template_match field.
                  #
                  #
                  #       - -At least one variable must be specified in the path_template_match
                  #       field
                  #    - You can omit variables from the rewritten URL
                  #       - The * and ** operators cannot be matched
                  #       unless they have a corresponding variable name - e.g.
                  #       {format=*} or {var=**}.
                  #
                  # For example, a path_template_match of /static/{format=**}
                  # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                  # rewrite, so that /{country}/{format}/{suffix=**} can be
                  # rewritten as /content/{format}/{country}/{suffix}.
                  #
                  # At least
                  # one non-empty routeRules[].matchRules[].path_template_match is
                  # required.
                  #
                  # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
              "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                "pathPattern": "A String", # The regular expression used to match against the URL path.
                    # It uses RE2 syntax with the following constraints:
                    #
                    #
                    #      - Any single character operators
                    #      - Groups are allowed to have only submatch operator inside
                    #      - Groups are allowed only without any char repetition, e.g.
                    #      .*
                    #      - Any char repetition, e.g. .*, is
                    #      only allowed to be used in a single regex together with:
                    #
                    #
                    #             - Empty string operators
                    #             - Other repetitions
                    #             - Ranges
                    #             - Repetitions of ranges
                    #
                    #
                    #      - Ranges are only allowed to have:
                    #
                    #
                    #             - Character range
                    #             - Digits range
                    #             - Symbols listed in characters allowed for ranges
                "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                    # the path.
              },
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                # occurs. The weights determine the fraction of traffic that flows to
                # their corresponding backend service. If all traffic needs to
                # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                #
                # After a backend service is identified and before forwarding
                # the request to
                # the backend service, advanced routing actions such as URL rewrites and
                # header transformations are applied depending on additional settings
                # specified in this HttpRouteAction.
              { # In contrast to a single BackendService in
                  # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                  # multiple backend services. The volume of traffic for each
                  # backend service is proportional to the weight specified
                  # in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService
                    # resource. Before
                    # forwarding the request to backendService, the load balancer
                    # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                    # effect for the selected backendService.
                    #
                    # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                    #
                    # headerAction is not supported for load balancers that have
                    # their loadBalancingScheme set to EXTERNAL.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # the request is passed along to the selected backendService.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                      # client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                    # computed asweight / (sum of all weightedBackendService weights in routeAction).
                    #
                    # The selection of a backend service is determined only for new traffic.
                    # Once a user's request has been directed to a backend service,
                    # subsequent requests are sent to the same backend service as
                    # determined by the backend service's session affinity policy.
                    # Don't configure session affinity if you're using weighted traffic
                    # splitting. If you do, the weighted traffic splitting configuration takes
                    # precedence.
                    #
                    # The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This
              # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
              # matched. For example, the
              # following are all valid URLs to a BackendService resource:
              #
              #
              #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
              #      - compute/v1/projects/project/global/backendServices/backendService
              #      - global/backendServices/backendService
              #
              #
              # If defaultRouteAction is also specified, advanced
              # routing actions, such as URL rewrites, take effect before sending the
              # request to the backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Authorization requires one or more of the following Google IAM permissions on the
              # specified resource default_service:
              #
              #
              #       - compute.backendBuckets.use
              #       - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
              # by defaultUrlRedirect.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                # was supplied in the request.
                #
                # The value must be from 1 to 255
                # characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                # set to HTTPS.
                # If set to false, the URL scheme of the redirected request
                # remains the same as that of the request.
                #
                # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                #
                # The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                # that was supplied in the request.
                #
                # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                # the HttpRouteRuleMatch, retaining the remaining portion
                # of the URL before redirecting the request.
                #
                # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                #
                # Supported values are:
                #
                #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                #    to 301.
                #    - FOUND, which corresponds to 302.
                #    - SEE_OTHER which corresponds to 303.
                #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                #    method is retained.
                #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                #    method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                # URL is
                # removed before redirecting the request. If set to false, the
                # query portion of the original URL is retained.
                #
                # The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
              # for the selected backend service.
              #
              # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
              #
              # HeaderAction is not supported for load balancers
              # that have
              # their loadBalancingScheme set to EXTERNAL.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
              # the request is passed along to the selected backendService.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                # client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules
              # when routing based on simple path matching is all that's required. A path
              # rule can only include a wildcard character (*) after a
              # forward slash character ("/").
              #
              # The order by which path rules are specified does not matter.
              # Matches are always done on the longest-path-first basis.
              #
              # For example: a pathRule with a path /a/b/c/* will match
              # before /a/b/* irrespective of the order in which those paths appear in this
              # list.
              #
              # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the PathRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A PathRule for /coming_soon/ is configured for the error
                  #      code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in PathRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with /
                  # and the only place a * is allowed is at the end following
                  # a /.  The string fed to the path matcher does not include
                  # any text after the first ? or #, and
                  # those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected
                  # backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a path rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
              # desired. routeRules are evaluated in order of priority, from
              # the lowest to highest number.
              #
              # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request
                # and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the RouteRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A RouteRule for /coming_soon/ is configured for the
                  #      error code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in RouteRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # When
                  # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                  # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                  # a retry, if load balancer is successful in reaching the
                  # service, the customErrorResponsePolicy is ignored and
                  # the response from the service is returned to the client.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule.
                  #
                  #
                  # The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                  # for the selected backendService.
                  #
                  # The headerAction value specified here is applied before the
                  # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                  #
                  # HeaderAction is not supported for load balancers
                  # that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterConfigs only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterMetadata only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                  # this routeRule when any of thematchRules are satisfied. However predicates within
                  # a given matchRule have AND semantics. All predicates
                  # within a matchRule must match for the request to
                  # match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching
                    # requests to an HttpRouteRule. All specified criteria must
                    # be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                      # that may be part of the original URL.
                      #
                      # fullPathMatch must be from 1 to 1024 characters.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                      # corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match.
                          #
                          # For matching against the HTTP request's authority, use a headerMatch
                          # with the header name ":authority".
                          #
                          # For matching a request's method, use the headerName ":method".
                          #
                          # When the URL map is bound to a target gRPC proxy that has
                          # the validateForProxyless field set to true, only
                          # non-binary
                          # user-specified custom metadata and the `content-type` header are supported.
                          # The following transport-level headers cannot be used in header matching
                          # rules:
                          # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                          # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                          # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                          # `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a
                          # match if the preceding match criteria are met. If set to true,
                          # the headerMatch is considered a match if the preceding
                          # match criteria are NOT met.
                          #
                          # The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The
                          # match takes place whether or not the request's header has a value.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                          # specified in rangeMatch. If the header does not contain an
                          # integer, number or is empty, the match fails.
                          #
                          # For example for a range [-5, 0]
                          #
                          #
                          #       - -3 will match.
                          #       - 0 will not match.
                          #       - 0.25 will not match.
                          #       - -3someString will not match.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # rangeMatch is not supported for load balancers
                          # that have loadBalancingScheme set to EXTERNAL.
                          # within the specified integer range.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                          # For more information about regular expression syntax, see Syntax.
                          #
                          # For matching against a port specified in the HTTP request, use a
                          # headerMatch with headerName set to PORT and a regular expression that
                          # satisfies the RFC2616 Host header's port specifier.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                      # matches are case sensitive.
                      #
                      # The default value is false.
                      #
                      # ignoreCase must not be used with regexMatch.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                      # configuration to a limited set of xDS
                      # compliant clients. In their xDS requests to the load balancer, xDS clients
                      # present node
                      # metadata. When there is a match, the relevant routing configuration
                      # is made available to those proxies.
                      #
                      # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                      # the metadata. If its filterMatchCriteria is set to
                      # MATCH_ALL, then all of its filterLabels must match with
                      # corresponding labels provided in the metadata. If multiple
                      # metadata filters are specified, all of them need to be
                      # satisfied in order to be considered a match.
                      #
                      # metadataFilters specified here is applied after those
                      # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                      #
                      # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing
                        # configuration to a limited set of load balancing proxies. Proxies and
                        # sidecars involved in load balancing would typically present metadata to the
                        # load balancers that need to match criteria specified here. If a match takes
                        # place, the relevant configuration is made available to those
                        # proxies.
                        #
                        # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                        # one of thefilterLabels must match the corresponding label provided in
                        # the metadata. If its filterMatchCriteria is set to
                        # MATCH_ALL, then all of its filterLabels must match with
                        # corresponding labels provided in the metadata.
                        #
                        # An example for using metadataFilters would be: if
                        # load balancing involves
                        # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided
                          # metadata based on filterMatchCriteria
                          #
                          # This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected
                            # to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label.
                              #
                              #  The name can have a maximum length of 1024 characters and must be at
                              # least 1 character long.
                          "value": "A String", # The value of the label must match the specified value.
                              #
                              # value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                          # within the list of filterLabels and contributes toward the
                          # overall metadataFilter match.
                          #
                          #  Supported values are:
                          #
                          #    - MATCH_ANY: at least one of the filterLabels
                          #    must have a matching label in the provided metadata.
                          #    - MATCH_ALL: all filterLabels must have
                          #    matching labels in the provided metadata.
                    },
                  ],
                  "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                      # the :path header after the query string is removed.
                      #
                      # A path template pattern can include variables and wildcards.
                      # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                      # matches a single path segment, and ** that matches zero or
                      # more path segments. The pattern must follow these rules:
                      #
                      #
                      #       - The value must be between 1 and 1024 characters.
                      #       - The pattern must start with a leading slash ("/").
                      #       - No more than 5 operators (variables or wildcards) may appear in
                      #       the pattern.
                      #
                      # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                      # set.
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                      # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                      #
                      # The value must be from 1 to 1024 characters.
                      #
                      # The * character inside a prefix match is
                      # treated as a literal character, not as a wildcard.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                      # used within a matchRule.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                      # match corresponding query parameters in the request.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter exactly matches the contents of exactMatch.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                          # the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                          # request contains the query parameter, irrespective of whether the
                          # parameter has a value or not.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter matches the regular expression specified byregexMatch. For
                          # more information about regular expression syntax, see Syntax.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                      # supplied with the original URL. For
                      # more information about regular expression syntax, see Syntax.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                      # (regional scope) or INTERNAL_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher,
                  # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                  # of priority, from the lowest to highest number. The priority of a
                  # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                  # that matches the request is applied.
                  #
                  #
                  # You cannot configure two or more routeRules with the same priority.
                  # Priority for each rule must be set to a number from 0 to 2147483647
                  # inclusive.
                  #
                  #
                  # Priority numbers can have gaps, which enable you to add or remove rules
                  # in the future without affecting the rest of the rules. For example, 1, 2,
                  # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                  # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                  # without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a route rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
          # This field is not applicable to global URL maps.
          # You must specify this field as part of the HTTP request URL. It is
          # not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
        "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
          "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
          "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
        },
      },
      "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
          # maximum of 100 tests per UrlMap.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
              # routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
              # containing the scheme, host, path and query parameters.
              #
              # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
              # the load balancer to backends. For rules with urlRewrite,
              # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
              #
              # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
              # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
              # If urlRedirect specifies strip_query, the test
              # passes only if expectedOutputUrl does not contain any query
              # parameters.
              #
              # expectedOutputUrl is optional whenservice is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
              # load balancer's redirect response.
              #
              # expectedRedirectResponseCode cannot be set whenservice is set.
          "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
              # being tested.
              # [Deprecated] This field is deprecated.
              # Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains
              # a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header,
              # then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource
              # the given URL should be mapped to.
              #
              # The service field cannot
              # be set if expectedRedirectResponseCode is set.
        },
      ],
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so
    that if you must retry your request, the server will know to ignore the
    request if it has already been completed.

    For example, consider a situation where you make an initial request and
    the request times out. If you make the request again with the same
    request ID, the server can check if original operation with the same
    request ID was received, and if so, will ignore the second request. This
    prevents clients from accidentally creating duplicate commitments.

    The request ID must be
    a valid UUID with the exception that zero UUID is not supported
    (00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource.
        #
        # Google Compute Engine has three Operation resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/globalOperations)
        # * [Regional](/compute/docs/reference/rest/alpha/regionOperations)
        # * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations)
        #
        # You can use an operation resource to manage asynchronous API requests.
        # For more information, readHandling
        # API responses.
        #
        # Operations can be global, regional or zonal.
        #
        #    - For global operations, use the `globalOperations`
        #    resource.
        #    - For regional operations, use the
        #    `regionOperations` resource.
        #    - For zonal operations, use
        #    the `zoneOperations` resource.
        #
        #
        #
        # For more information, read
        # Global, Regional, and Zonal Resources.
        #
        # Note that completed Operation resources have a limited
        # retention period.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request.
          # Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is
          # set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is inRFC3339
          # text format.
      "error": { # [Output Only] If errors are generated during processing of the operation,
          # this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this
            # operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error
                # details. There is a set of defined message types to use for providing
                # details.The syntax depends on the error code. For example,
                # QuotaExceededInfo will have details when the error code is
                # QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details.
                    #
                    # Example of an error when contacting the "pubsub.googleapis.com" API when it
                    # is not enabled:
                    #
                    #     { "reason": "API_DISABLED"
                    #       "domain": "googleapis.com"
                    #       "metadata": {
                    #         "resource": "projects/123",
                    #         "service": "pubsub.googleapis.com"
                    #       }
                    #     }
                    #
                    # This response indicates that the pubsub.googleapis.com API is not enabled.
                    #
                    # Example of an error that is returned when attempting to create a Spanner
                    # instance in a region that is out of stock:
                    #
                    #     { "reason": "STOCKOUT"
                    #       "domain": "spanner.googleapis.com",
                    #       "metadata": {
                    #         "availableRegions": "us-central1,us-east2"
                    #       }
                    #     }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain
                      # is typically the registered service name of the tool or product that
                      # generates the error. Example: "pubsub.googleapis.com". If the error is
                      # generated by some common infrastructure, the error domain must be a
                      # globally unique value that identifies the infrastructure. For Google API
                      # infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error.
                      #
                      # Keys must match a regular expression of `a-z+` but should
                      # ideally be lowerCamelCase. Also, they must be limited to 64 characters in
                      # length. When identifying the current value of an exceeded limit, the units
                      # should be contained in the key, not the value.  For example, rather than
                      # `{"instanceLimit": "100/request"}`, should be returned as,
                      # `{"instanceLimitPerRequest": "100"}`, if the client exceeds the number of
                      # instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the
                      # proximate cause of the error. Error reasons are unique within a particular
                      # domain of errors. This should be at most 63 characters and match a
                      # regular expression of `A-Z+[A-Z0-9]`, which represents
                      # UPPER_SNAKE_CASE.
                },
                "help": { # Provides links to documentation or for performing an out of band action.
                    #
                    # For example, if a quota check failed with an error indicating the calling
                    # project hasn't enabled the accessed service, this can contain a URL pointing
                    # directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user
                    # which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at
                      # https://www.rfc-editor.org/rfc/bcp/bcp47.txt.
                      # Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "futureLimit": 3.14, # Future quota limit being rolled out. The limit's unit depends on the quota
                      #  type or metric.
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type
                      # or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                  "rolloutStatus": "A String", # Rollout status of the future quota limit.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error.
                # This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "getVersionOperationMetadata": {
        "inlineSbomInfo": {
          "currentComponentVersions": { # A mapping of components to their currently-applied versions or other
              # appropriate identifiers.
            "a_key": "A String",
          },
          "targetComponentVersions": { # A mapping of components to their target versions or other appropriate
              # identifiers.
            "a_key": "A String",
          },
        },
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error
          # message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error
          # status code that was returned. For example, a `404` means the
          # resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is
          # defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested.
          # This value is inRFC3339
          # text format.
      "instancesBulkInsertOperationMetadata": {
        "perLocationStatus": { # Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "createdVmCount": 42, # [Output Only] Count of VMs successfully created so far.
            "deletedVmCount": 42, # [Output Only] Count of VMs that got deleted during rollback.
            "failedToCreateVmCount": 42, # [Output Only] Count of VMs that started creating but encountered an
                # error.
            "status": "A String", # [Output Only] Creation status of BulkInsert operation - information
                # if the flow is rolling forward or rolling back.
            "targetVmCount": 42, # [Output Only] Count of VMs originally planned to be created.
          },
        },
      },
      "kind": "compute#operation", # Output only. [Output Only] Type of the resource. Always `compute#operation` for
          # Operation resources.
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # Output only. [Output Only] An ID that represents a group of operations, such as when a
          # group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`,
          # `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100.
          # There is no requirement that this be linear or support any granularity of
          # operations. This should not be used to guess when the operation will be
          # complete. This number should monotonically increase as the operation
          # progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only
          # applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # Output only. [Output Only] Server-defined URL for this resource with the resource id.
      "setCommonInstanceMetadataOperationMetadata": { # Output only. [Output Only] If the operation is for projects.setCommonInstanceMetadata,
          # this field will contain information on all underlying zonal actions and
          # their state.
        "clientOperationId": "A String", # [Output Only] The client operation id.
        "perLocationOperations": { # [Output Only] Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "error": { # The `Status` type defines a logical error model that is suitable for # [Output Only] If state is `ABANDONED` or `FAILED`, this field is
                # populated.
                # different programming environments, including REST APIs and RPC APIs. It is
                # used by [gRPC](https://github.com/grpc). Each `Status` message contains
                # three pieces of data: error code, error message, and error details.
                #
                # You can find out more about this error model and how to work with it in the
                # [API Design Guide](https://cloud.google.com/apis/design/errors).
              "code": 42, # The status code, which should be an enum value of google.rpc.Code.
              "details": [ # A list of messages that carry the error details.  There is a common set of
                  # message types for APIs to use.
                {
                  "a_key": "", # Properties of the object. Contains field @type with type URL.
                },
              ],
              "message": "A String", # A developer-facing error message, which should be in English. Any
                  # user-facing error message should be localized and sent in the
                  # google.rpc.Status.details field, or localized by the client.
            },
            "state": "A String", # [Output Only] Status of the action, which can be one of the following:
                # `PROPAGATING`, `PROPAGATED`, `ABANDONED`, `FAILED`, or `DONE`.
          },
        },
      },
      "startTime": "A String", # [Output Only] The time that this operation was started by the server.
          # This value is inRFC3339
          # text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the
          # following:
          # `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the
          # operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation
          # of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For
          # operations related to creating a snapshot, this points to the disk
          # that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example:
          # `user@example.com` or
          # `alice_smith_identifier (global/workforcePools/example-com-us-employees)`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the
          # operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
              # Engine returns NO_RESULTS_ON_PAGE if there
              # are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key:
              # value format. For example:
              #
              # "data": [
              #   {
              #    "key": "scope",
              #    "value": "zones/us-east1-d"
              #   }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being
                  # returned. For example, for warnings where there are no results in a list
                  # request for a particular zone, this key might be scope and
                  # the key value might be the zone name. Other examples might be a key
                  # indicating a deprecated resource and a suggested replacement, or a
                  # warning about invalid network settings (for example, if an instance
                  # attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only
          # applicable when performing per-zone operations.
    }

`invalidateCache(project, urlMap, body=None, requestId=None, x__xgafv=None)`

    Initiates a cache invalidation operation, invalidating the specified path,
    scoped to the specified UrlMap.

    For more information, see [Invalidating cached
    content](/cdn/docs/invalidating-cached-content).

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap scoping this request. (required)
      body: object, The request body.
        The object takes the form of:

    {
      "backendService": "A String", # If set, this invalidation rule will only apply to requests routed to the
          # given backend service or backend bucket.
          # For example, for a backend bucket `bb1` in the same scope as the URL map,
          # the path would be `projects/my-project/global/backendBuckets/bb1`; and
          # for a backend service `bs1` in the same scope as the URL map, the path
          # would be `projects/my-project/global/backendServices/bs1`.
      "cacheTags": [ # A list of cache tags used to identify cached objects.
          #
          #
          #    - Cache tags are specified when the response is first cached, by setting
          #    the `Cache-Tag` response header at the origin.
          #    - Multiple cache tags in the same invalidation request are treated as
          #    Boolean `OR` - for example, `tag1 OR tag2 OR tag3`.
          #    - If other fields are also specified, these are treated as Boolean `AND`
          #    with any tags.
          #
          #
          # Up to 10 tags can be specified in a single invalidation request.
        "A String",
      ],
      "contentType": "A String", # If set, this invalidation rule will only apply to responses with the given
          # content-type. Parameters are not allowed and are ignored from the response
          # when matching. Wildcards are not allowed.
      "host": "A String", # If set, this invalidation rule will only apply to requests with a Host
          # header matching host.
      "httpStatus": 42, # If set, this invalidation rule will only apply to responses with the
          # given HTTP status. Valid range is 200-599.
      "path": "A String",
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so
    that if you must retry your request, the server will know to ignore the
    request if it has already been completed.

    For example, consider a situation where you make an initial request and
    the request times out. If you make the request again with the same
    request ID, the server can check if original operation with the same
    request ID was received, and if so, will ignore the second request. This
    prevents clients from accidentally creating duplicate commitments.

    The request ID must be
    a valid UUID with the exception that zero UUID is not supported
    (00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource.
        #
        # Google Compute Engine has three Operation resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/globalOperations)
        # * [Regional](/compute/docs/reference/rest/alpha/regionOperations)
        # * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations)
        #
        # You can use an operation resource to manage asynchronous API requests.
        # For more information, readHandling
        # API responses.
        #
        # Operations can be global, regional or zonal.
        #
        #    - For global operations, use the `globalOperations`
        #    resource.
        #    - For regional operations, use the
        #    `regionOperations` resource.
        #    - For zonal operations, use
        #    the `zoneOperations` resource.
        #
        #
        #
        # For more information, read
        # Global, Regional, and Zonal Resources.
        #
        # Note that completed Operation resources have a limited
        # retention period.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request.
          # Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is
          # set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is inRFC3339
          # text format.
      "error": { # [Output Only] If errors are generated during processing of the operation,
          # this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this
            # operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error
                # details. There is a set of defined message types to use for providing
                # details.The syntax depends on the error code. For example,
                # QuotaExceededInfo will have details when the error code is
                # QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details.
                    #
                    # Example of an error when contacting the "pubsub.googleapis.com" API when it
                    # is not enabled:
                    #
                    #     { "reason": "API_DISABLED"
                    #       "domain": "googleapis.com"
                    #       "metadata": {
                    #         "resource": "projects/123",
                    #         "service": "pubsub.googleapis.com"
                    #       }
                    #     }
                    #
                    # This response indicates that the pubsub.googleapis.com API is not enabled.
                    #
                    # Example of an error that is returned when attempting to create a Spanner
                    # instance in a region that is out of stock:
                    #
                    #     { "reason": "STOCKOUT"
                    #       "domain": "spanner.googleapis.com",
                    #       "metadata": {
                    #         "availableRegions": "us-central1,us-east2"
                    #       }
                    #     }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain
                      # is typically the registered service name of the tool or product that
                      # generates the error. Example: "pubsub.googleapis.com". If the error is
                      # generated by some common infrastructure, the error domain must be a
                      # globally unique value that identifies the infrastructure. For Google API
                      # infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error.
                      #
                      # Keys must match a regular expression of `a-z+` but should
                      # ideally be lowerCamelCase. Also, they must be limited to 64 characters in
                      # length. When identifying the current value of an exceeded limit, the units
                      # should be contained in the key, not the value.  For example, rather than
                      # `{"instanceLimit": "100/request"}`, should be returned as,
                      # `{"instanceLimitPerRequest": "100"}`, if the client exceeds the number of
                      # instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the
                      # proximate cause of the error. Error reasons are unique within a particular
                      # domain of errors. This should be at most 63 characters and match a
                      # regular expression of `A-Z+[A-Z0-9]`, which represents
                      # UPPER_SNAKE_CASE.
                },
                "help": { # Provides links to documentation or for performing an out of band action.
                    #
                    # For example, if a quota check failed with an error indicating the calling
                    # project hasn't enabled the accessed service, this can contain a URL pointing
                    # directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user
                    # which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at
                      # https://www.rfc-editor.org/rfc/bcp/bcp47.txt.
                      # Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "futureLimit": 3.14, # Future quota limit being rolled out. The limit's unit depends on the quota
                      #  type or metric.
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type
                      # or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                  "rolloutStatus": "A String", # Rollout status of the future quota limit.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error.
                # This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "getVersionOperationMetadata": {
        "inlineSbomInfo": {
          "currentComponentVersions": { # A mapping of components to their currently-applied versions or other
              # appropriate identifiers.
            "a_key": "A String",
          },
          "targetComponentVersions": { # A mapping of components to their target versions or other appropriate
              # identifiers.
            "a_key": "A String",
          },
        },
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error
          # message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error
          # status code that was returned. For example, a `404` means the
          # resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is
          # defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested.
          # This value is inRFC3339
          # text format.
      "instancesBulkInsertOperationMetadata": {
        "perLocationStatus": { # Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "createdVmCount": 42, # [Output Only] Count of VMs successfully created so far.
            "deletedVmCount": 42, # [Output Only] Count of VMs that got deleted during rollback.
            "failedToCreateVmCount": 42, # [Output Only] Count of VMs that started creating but encountered an
                # error.
            "status": "A String", # [Output Only] Creation status of BulkInsert operation - information
                # if the flow is rolling forward or rolling back.
            "targetVmCount": 42, # [Output Only] Count of VMs originally planned to be created.
          },
        },
      },
      "kind": "compute#operation", # Output only. [Output Only] Type of the resource. Always `compute#operation` for
          # Operation resources.
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # Output only. [Output Only] An ID that represents a group of operations, such as when a
          # group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`,
          # `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100.
          # There is no requirement that this be linear or support any granularity of
          # operations. This should not be used to guess when the operation will be
          # complete. This number should monotonically increase as the operation
          # progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only
          # applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # Output only. [Output Only] Server-defined URL for this resource with the resource id.
      "setCommonInstanceMetadataOperationMetadata": { # Output only. [Output Only] If the operation is for projects.setCommonInstanceMetadata,
          # this field will contain information on all underlying zonal actions and
          # their state.
        "clientOperationId": "A String", # [Output Only] The client operation id.
        "perLocationOperations": { # [Output Only] Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "error": { # The `Status` type defines a logical error model that is suitable for # [Output Only] If state is `ABANDONED` or `FAILED`, this field is
                # populated.
                # different programming environments, including REST APIs and RPC APIs. It is
                # used by [gRPC](https://github.com/grpc). Each `Status` message contains
                # three pieces of data: error code, error message, and error details.
                #
                # You can find out more about this error model and how to work with it in the
                # [API Design Guide](https://cloud.google.com/apis/design/errors).
              "code": 42, # The status code, which should be an enum value of google.rpc.Code.
              "details": [ # A list of messages that carry the error details.  There is a common set of
                  # message types for APIs to use.
                {
                  "a_key": "", # Properties of the object. Contains field @type with type URL.
                },
              ],
              "message": "A String", # A developer-facing error message, which should be in English. Any
                  # user-facing error message should be localized and sent in the
                  # google.rpc.Status.details field, or localized by the client.
            },
            "state": "A String", # [Output Only] Status of the action, which can be one of the following:
                # `PROPAGATING`, `PROPAGATED`, `ABANDONED`, `FAILED`, or `DONE`.
          },
        },
      },
      "startTime": "A String", # [Output Only] The time that this operation was started by the server.
          # This value is inRFC3339
          # text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the
          # following:
          # `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the
          # operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation
          # of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For
          # operations related to creating a snapshot, this points to the disk
          # that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example:
          # `user@example.com` or
          # `alice_smith_identifier (global/workforcePools/example-com-us-employees)`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the
          # operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
              # Engine returns NO_RESULTS_ON_PAGE if there
              # are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key:
              # value format. For example:
              #
              # "data": [
              #   {
              #    "key": "scope",
              #    "value": "zones/us-east1-d"
              #   }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being
                  # returned. For example, for warnings where there are no results in a list
                  # request for a particular zone, this key might be scope and
                  # the key value might be the zone name. Other examples might be a key
                  # indicating a deprecated resource and a suggested replacement, or a
                  # warning about invalid network settings (for example, if an instance
                  # attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only
          # applicable when performing per-zone operations.
    }

`list(project, filter=None, maxResults=None, orderBy=None, pageToken=None, returnPartialSuccess=None, x__xgafv=None)`

    Retrieves the list of UrlMap resources available to the specified
    project.

    Args:
      project: string, Project ID for this request. (required)
      filter: string, A filter expression that filters resources listed in the response. Most
    Compute resources support two types of filter expressions:
    expressions that support regular expressions and expressions that follow
    API improvement proposal AIP-160.
    These two types of filter expressions cannot be mixed in one request.

    If you want to use AIP-160, your expression must specify the field name, an
    operator, and the value that you want to use for filtering. The value
    must be a string, a number, or a boolean. The operator
    must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`.

    For example, if you are filtering Compute Engine instances, you can
    exclude instances named `example-instance` by specifying
    `name != example-instance`.

    The `:*` comparison can be used to test whether a key has been defined.
    For example, to find all objects with `owner` label use:
    ```
    labels.owner:*
    ```

    You can also filter nested fields. For example, you could specify
    `scheduling.automaticRestart = false` to include instances only
    if they are not scheduled for automatic restarts. You can use filtering
    on nested fields to filter based onresource labels.

    To filter on multiple expressions, provide each separate expression within
    parentheses. For example:
    ```
    (scheduling.automaticRestart = true)
    (cpuPlatform = "Intel Skylake")
    ```
    By default, each expression is an `AND` expression. However, you
    can include `AND` and `OR` expressions explicitly.
    For example:
    ```
    (cpuPlatform = "Intel Skylake") OR
    (cpuPlatform = "Intel Broadwell") AND
    (scheduling.automaticRestart = true)
    ```

    If you want to use a regular expression, use the `eq` (equal) or `ne`
    (not equal) operator against a single un-parenthesized expression with or
    without quotes or against multiple parenthesized expressions. Examples:

    `fieldname eq unquoted literal`
    `fieldname eq 'single quoted literal'`
    `fieldname eq "double quoted literal"`
    `(fieldname1 eq literal) (fieldname2 ne "literal")`

    The literal value is interpreted as a regular expression using GoogleRE2 library syntax.
    The literal value must match the entire field.

    For example, to filter for instances that do not end with name "instance",
    you would use `name ne .*instance`.

    You cannot combine constraints on multiple fields using regular
    expressions.
      maxResults: integer, The maximum number of results per page that should be returned.
    If the number of available results is larger than `maxResults`,
    Compute Engine returns a `nextPageToken` that can be used to get
    the next page of results in subsequent list requests. Acceptable values are
    `0` to `500`, inclusive. (Default: `500`)
      orderBy: string, Sorts list results by a certain order. By default, results
    are returned in alphanumerical order based on the resource name.

    You can also sort results in descending order based on the creation
    timestamp using `orderBy="creationTimestamp desc"`. This sorts
    results based on the `creationTimestamp` field in
    reverse chronological order (newest result first). Use this to sort
    resources like operations so that the newest operation is returned first.

    Currently, only sorting by `name` or
    `creationTimestamp desc` is supported.
      pageToken: string, Specifies a page token to use. Set `pageToken` to the
    `nextPageToken` returned by a previous list request to get
    the next page of results.
      returnPartialSuccess: boolean, Opt-in for partial success behavior which provides partial results in case
    of failure. The default value is false.

    For example, when partial success behavior is enabled, aggregatedList for a
    single zone scope either returns all resources in the zone or no resources,
    with an error code.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Contains a list of UrlMap resources.
      "id": "A String", # [Output Only] Unique identifier for the resource; defined by the server.
      "items": [ # A list of UrlMap resources.
        { # Represents a URL Map resource.
            #
            # Compute Engine has two URL Map resources:
            #
            # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
            # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
            #
            # A URL map resource is a component of certain types of cloud load balancers
            # and Traffic Director:
            #
            # * urlMaps are used by global external Application Load
            # Balancers, classic Application Load Balancers, and cross-region internal
            # Application Load Balancers.
            # * regionUrlMaps are used by internal Application Load Balancers,
            # regional external Application Load Balancers and regional internal
            # Application Load Balancers.
            #
            # For a list of supported URL map features by the load balancer type, see the
            # Load balancing features: Routing and traffic management table.
            #
            # For a list of supported URL map features for Traffic Director, see the
            # Traffic Director features: Routing and traffic management table.
            #
            # This resource defines mappings from hostnames and URL paths to either a
            # backend service or a backend bucket.
            #
            # To use the global urlMaps resource, the backend service must
            # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
            # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
            # information, read URL
            # Map Concepts.
          "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
              # text format.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
              # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
              #
              # This policy takes
              # effect at the load balancer level and applies only when no policy has been
              # defined for the error code at lower levels like PathMatcher, RouteRule and
              # PathRule within this UrlMap.
              #
              # For example, consider a UrlMap with the
              # following configuration:
              #
              #
              #      - defaultCustomErrorResponsePolicy containing policies for
              #      responding to 5xx and 4xx errors
              #      - A PathMatcher configured for *.example.com has
              #      defaultCustomErrorResponsePolicy for 4xx.
              #
              # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
              # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
              # a request that does not match any host in *.example.com such
              # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
              # takes effect.
              #
              # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
              # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
              # a retry, if load balancer is successful in reaching the
              # service, the defaultCustomErrorResponsePolicy is ignored and
              # the response from the service is returned to the client.
              #
              # defaultCustomErrorResponsePolicy is supported only for
              # global external Application Load Balancers.
              # backend service or backend bucket responds with an error.
            "errorResponseRules": [ # Specifies rules for returning error responses.
                #
                # In a given policy, if you specify rules for both a range of error codes
                # as well as rules for specific error codes then rules with specific error
                # codes have a higher priority. For example, assume that you configure a rule
                # for 401 (Un-authorized) code, and another for all 4 series
                # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                # However if the backend service returns a 403, the rule for4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along
                  # with the custom error content and the response code returned by the backend
                  # service.
                "matchResponseCodes": [ # Valid values include:
                    #
                    #
                    #      - A number between 400 and 599: For example
                    #      401 or 503, in which case the load balancer
                    #      applies the policy if the error code exactly matches this value.
                    #      - 5xx: Load Balancer will apply the policy if the
                    #      backend service responds with any response code in the range of
                    #      500 to 599.
                    #    - 4xx: Load
                    #      Balancer will apply the policy if the backend service responds with any
                    #      response code in the range of 400 to
                    #      499.
                    #
                    # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                    # error content. If overrideResponseCode is not supplied, the
                    # same response code returned by the original backend bucket or backend
                    # service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                    #
                    # path must start
                    # with a leading slash. path cannot have trailing slashes.
                    #
                    # If the file is not available in backendBucket  or the
                    # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                    #
                    # The value must
                    # be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                # contains the custom error content. Examples are:
                #
                #
                #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - global/backendBuckets/myBackendBucket
                #
                # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                #
                # If load balancer cannot reach
                # the backendBucket, a simple Not Found Error will
                # be returned, with the original response code (oroverrideResponseCode if configured).
                #
                # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the
              # hostRules match. The load balancer performs advanced routing
              # actions, such as URL rewrites and header transformations, before forwarding
              # the request to the selected backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              #  URL maps for classic Application Load Balancers only support
              # the urlRewrite action within defaultRouteAction.
              #
              #
              # defaultRouteAction has no effect when the URL map is bound
              # to a target gRPC proxy that has the validateForProxyless field
              # set to true.
            "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                # property must be specified. This policy cannot be specified if any target
                # backend has Identity-Aware Proxy enabled.
              "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                  # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                  # header names can be specified. The cache is bypassed for all `cacheMode`
                  # values.
                "A String",
              ],
              "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                  # on the backend type: for Backend Services, the complete request URI is
                  # used; for Backend Buckets, the request URI is used without the protocol or
                  # host, and only query parameters known to Cloud Storage are included.
                  # Policy defined on Route Action.
                "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                    # parameters will be included. Either specify `excludedQueryParameters`
                    # or `includedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                  "A String",
                ],
                "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # host is never included in a Backend Bucket's cache key. Attempting to set
                    # it on a route that points exclusively to Backend Buckets will result in a
                    # configuration error.
                "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # protocol is never included in a Backend Bucket's cache key. Attempting to
                    # set on a route that points exclusively to Backend Buckets will result in
                    # a configuration error.
                "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                    # `includedQueryParameters` and `excludedQueryParameters`. If neither
                    # is set, the entire query string will be included. If false, the query
                    # string will be excluded from the cache key entirely.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                    # The name=value pair will be used in the cache key Cloud CDN generates.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket.
                    # Attempting to set it on a route that points exclusively to Backend
                    # Buckets will result in a configuration error. Up to 5 cookie names can be
                    # specified.
                  "A String",
                ],
                "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                  "A String",
                ],
                "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                    # parameters will be excluded. Either specify `includedQueryParameters`
                    # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                  "A String",
                ],
              },
              "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                  # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
              "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                  # content. This is used to clamp the max-age (or Expires) value sent to the
                  # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                  # is used for the response max-age directive, along with a "public"
                  # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                  # clamps the max-age from the origin (if specified), or else sets the
                  # response max-age directive to the lesser of the `clientTtl` and
                  # `defaultTtl`, and also ensures a "public" cache-control directive is
                  # present. The maximum allowed value is 31,622,400s (1 year). If not
                  # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                  # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                  # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                  # "always revalidate". The value of `defaultTtl` cannot be set to a value
                  # greater than that of `maxTtl`. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                  # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                  # accessed objects may be evicted from the cache before the defined TTL. If
                  # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                  # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                  # attempt to set a max-age or s-maxage higher than this, or an Expires header
                  # more than `maxTtl` seconds in the future will be capped at the value of
                  # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                  # Headers sent to the client will not be modified. Setting a TTL of "0" means
                  # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                  # Infrequently accessed objects may be evicted from the cache before the
                  # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                  # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                  # mode.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                  # to apply fine-grained caching for common errors or redirects.
                  # This can reduce the load on your origin and improve end-user
                  # experience by reducing response latency.
                  # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                  # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                  # the specified response code that lack any Cache-Control, Expires, or
                  # Pragma: no-cache directives. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, negative caching applies to all responses
                  # with the specified response code, and overrides any caching headers. By
                  # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                  #
                  # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                  # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                  # * 405 (Method Not Found), 501 (Not Implemented): 60s
                  #
                  # These defaults can be overridden in `negativeCachingPolicy`.
                  # If not specified, Cloud CDN applies negative caching by default.
              "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                  # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                  # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                  # CDN's default cache TTLs. Note that when specifying an explicit
                  # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                  # all response codes that you wish to cache. Cloud CDN will not apply any
                  # default negative caching when a policy exists.
                { # Specify CDN TTLs for response error codes.
                  "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                      # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                      # specified as values, and you cannot specify a status code more than
                      # once.
                  "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                      # corresponding status code.
                      # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                      # objects may be evicted from the cache before the defined TTL.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
              ],
              "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                  # requests into a small number of requests to the origin. If not specified,
                  # Cloud CDN applies request coalescing by default.
              "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                  # content with the origin, or when an error is encountered when refreshing
                  # the cache.
                  # This setting defines the default "max-stale" duration for any cached
                  # responses that do not specify a max-stale directive. Stale responses that
                  # exceed the TTL configured here will not be served. The default limit
                  # (max-stale) is 86400s (1 day), which will allow stale content to be
                  # served up to this limit beyond the max-age (or s-maxage) of a cached
                  # response.
                  # The maximum allowed value is 604800 (1 week).
                  # Set this to zero (0) to disable serve-while-stale.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
                #
                # Not supported when the URL map is bound to a target gRPC proxy.
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true
                  # indicates that
                  # the actual request can include user credentials. This field translates to
                  # the Access-Control-Allow-Credentials header.
                  #
                  # Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                  # header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                  # header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                  # more information, see regular expression syntax.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                  #
                  # Regular expressions can only be used when the loadBalancingScheme is
                  # set to INTERNAL_SELF_MANAGED.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, disables the CORS policy.
                  # The default value is false, which indicates that the CORS
                  # policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                  # header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                  # seconds. This field translates to the Access-Control-Max-Age
                  # header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by a load balancer on a percentage of requests before sending
                # those requests to the backend service. Similarly requests from clients can
                # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                # that are configured with a fault_injection_policy if:
                # 1. The traffic is generated by fault injection AND
                # 2. The fault injection is not a delay fault injection.
                # Fault injection is not supported with the classic Application Load Balancer
                # . To see which load balancers support fault injection,
                # see Load
                # balancing: Routing and traffic management features.
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by the load balancer on a percentage of requests before sending
                # those request to the backend service. Similarly requests from clients can be
                # aborted by the load balancer for a percentage of requests.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                  # injection.
                "httpStatus": 42, # The HTTP status code used to abort the request.
                    #
                    # The value must be from 200 to 599 inclusive.
                    #
                    # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                    # according to this
                    # mapping table. HTTP status 200 is mapped to gRPC status
                    # UNKNOWN. Injecting an OK status is currently not supported by
                    # Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                    # that is aborted as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                  # injection, before being sent to a backend service.
                  # request to the backend service as part of fault injection.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                    # which a delay is introduced as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                # Global EXTERNAL_MANAGED load balancer schemes.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route
                # dynamically processes and delivers images from the network edge.
                # Image Optimization is only available for Global External Application Load
                # Balancers.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route.
              "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                # Unlike the timeout field where the timeout duration starts
                # from the time the request has been fully processed (known as*end-of-stream*),
                # the duration in this field is computed from the beginning of the stream
                # until the response has been processed, including all retries. A
                # stream that does not complete in this duration is closed.
                #
                # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                # with the route.
                #
                # This field is only allowed if the Url map is used with backend services
                # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                # are shadowed to a separate mirrored backend service. The load balancer does
                # not wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host / authority header is suffixed with-shadow.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # are shadowed to a separate mirrored backend service. The load balancer
                # doesn't wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host or authority header is suffixed with-shadow.
              "backendService": "A String", # The full or partial URL to the BackendService resource being
                  # mirrored to.
                  #
                  # The backend service configured for a mirroring
                  # policy must reference backends that are of the same type as the original
                  # backend service matched in the URL map.
                  #
                  # Serverless NEG backends are not currently supported as a mirrored
                  # backend service.
              "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                  # If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                  #
                  # If not specified, will use the timeout set in theHttpRouteAction field.
                  # If timeout in the HttpRouteAction field is not set, this field
                  # uses the largest timeout
                  # among all backend services associated with the route.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                  # values are:
                  #
                  #    - 5xx: retry is attempted if the instance or endpoint
                  #    responds with any 5xx response code, or if the instance or
                  #    endpoint does not respond at all. For example, disconnects, reset, read
                  #    timeout, connection failure, and refused streams.
                  #    - gateway-error: Similar to 5xx, but only
                  #    applies to response codes 502, 503 or504.
                  #    - connect-failure: a retry is attempted on failures
                  #    connecting to the instance or endpoint. For example, connection
                  #    timeouts.
                  #    - retriable-4xx: a retry is attempted if the instance
                  #    or endpoint responds with a 4xx response code.
                  #    The only error that you can retry is error code 409.
                  #    - refused-stream: a retry is attempted if the instance
                  #    or endpoint resets the stream with a REFUSED_STREAM error
                  #    code. This reset type indicates that it is safe to retry.
                  #    - cancelled: a retry is attempted if the gRPC status
                  #    code in the response header is set to cancelled.
                  #    - deadline-exceeded: a retry is attempted if the gRPC
                  #    status code in the response header is set todeadline-exceeded.
                  #    - internal: a retry is attempted if the gRPC
                  #    status code in the response header is set tointernal.
                  #    - resource-exhausted: a retry is attempted if the gRPC
                  #    status code in the response header is set toresource-exhausted.
                  #    - unavailable: a retry is attempted if the gRPC
                  #    status code in the response header is set tounavailable.
                  #
                  # Only the following codes are supported when the URL map is bound to
                  # target gRPC proxy that has validateForProxyless field set to true.
                  #
                  #    - cancelled
                  #    - deadline-exceeded
                  #    - internal
                  #    - resource-exhausted
                  #    - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                # time the request has been fully processed (known as *end-of-stream*)
                # up until the response has been processed. Timeout includes
                # all retries.
                #
                # If not specified, this field uses the largest timeout among all backend
                # services associated with the route.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                # to the matched service.
                #
                #  urlRewrite is the only action supported in UrlMaps
                # for classic Application Load Balancers.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # backend service.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                  # host header is replaced with contents of hostRewrite.
                  #
                  # The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                  # matching portion of the request's path is replaced bypathPrefixRewrite.
                  #
                  # The value must be from 1 to 1024 characters.
              "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                  # header) using the HTTP template syntax.
                  #
                  # A corresponding
                  # path_template_match must be specified. Any template variables must exist in
                  # the path_template_match field.
                  #
                  #
                  #       - -At least one variable must be specified in the path_template_match
                  #       field
                  #    - You can omit variables from the rewritten URL
                  #       - The * and ** operators cannot be matched
                  #       unless they have a corresponding variable name - e.g.
                  #       {format=*} or {var=**}.
                  #
                  # For example, a path_template_match of /static/{format=**}
                  # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                  # rewrite, so that /{country}/{format}/{suffix=**} can be
                  # rewritten as /content/{format}/{country}/{suffix}.
                  #
                  # At least
                  # one non-empty routeRules[].matchRules[].path_template_match is
                  # required.
                  #
                  # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
              "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                "pathPattern": "A String", # The regular expression used to match against the URL path.
                    # It uses RE2 syntax with the following constraints:
                    #
                    #
                    #      - Any single character operators
                    #      - Groups are allowed to have only submatch operator inside
                    #      - Groups are allowed only without any char repetition, e.g.
                    #      .*
                    #      - Any char repetition, e.g. .*, is
                    #      only allowed to be used in a single regex together with:
                    #
                    #
                    #             - Empty string operators
                    #             - Other repetitions
                    #             - Ranges
                    #             - Repetitions of ranges
                    #
                    #
                    #      - Ranges are only allowed to have:
                    #
                    #
                    #             - Character range
                    #             - Digits range
                    #             - Symbols listed in characters allowed for ranges
                "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                    # the path.
              },
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                # occurs. The weights determine the fraction of traffic that flows to
                # their corresponding backend service. If all traffic needs to
                # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                #
                # After a backend service is identified and before forwarding
                # the request to
                # the backend service, advanced routing actions such as URL rewrites and
                # header transformations are applied depending on additional settings
                # specified in this HttpRouteAction.
              { # In contrast to a single BackendService in
                  # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                  # multiple backend services. The volume of traffic for each
                  # backend service is proportional to the weight specified
                  # in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService
                    # resource. Before
                    # forwarding the request to backendService, the load balancer
                    # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                    # effect for the selected backendService.
                    #
                    # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                    #
                    # headerAction is not supported for load balancers that have
                    # their loadBalancingScheme set to EXTERNAL.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # the request is passed along to the selected backendService.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                      # client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                    # computed asweight / (sum of all weightedBackendService weights in routeAction).
                    #
                    # The selection of a backend service is determined only for new traffic.
                    # Once a user's request has been directed to a backend service,
                    # subsequent requests are sent to the same backend service as
                    # determined by the backend service's session affinity policy.
                    # Don't configure session affinity if you're using weighted traffic
                    # splitting. If you do, the weighted traffic splitting configuration takes
                    # precedence.
                    #
                    # The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL of the defaultService resource to
              # which traffic is directed if none of the hostRules match.
              # If defaultRouteAction is also specified, advanced
              # routing actions, such as URL rewrites, take effect before sending the
              # request to the backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # defaultService has no effect when the URL map is bound
              # to a target gRPC proxy that has the validateForProxyless field
              # set to true.
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
              # is redirected to a URL specified by defaultUrlRedirect.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                # was supplied in the request.
                #
                # The value must be from 1 to 255
                # characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                # set to HTTPS.
                # If set to false, the URL scheme of the redirected request
                # remains the same as that of the request.
                #
                # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                #
                # The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                # that was supplied in the request.
                #
                # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                # the HttpRouteRuleMatch, retaining the remaining portion
                # of the URL before redirecting the request.
                #
                # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                #
                # Supported values are:
                #
                #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                #    to 301.
                #    - FOUND, which corresponds to 302.
                #    - SEE_OTHER which corresponds to 303.
                #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                #    method is retained.
                #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                #    method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                # URL is
                # removed before redirecting the request. If set to false, the
                # query portion of the original URL is retained.
                #
                # The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
              # This field is used in optimistic locking. This field is ignored when
              # inserting a UrlMap. An up-to-date fingerprint must be provided
              # in order to update the UrlMap, otherwise the request will
              # fail with error 412 conditionNotMet.
              #
              # To see the latest fingerprint, make a get() request to
              # retrieve a UrlMap.
          "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
              # for the selected backendService.
              #
              # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
              #
              # headerAction is not supported for load balancers
              # that have
              # their loadBalancingScheme set to EXTERNAL.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
              # the request is passed along to the selected backendService.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                # client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # response before sending the response back to the client.
              "A String",
            ],
          },
          "hostRules": [ # The list of host rules to use against the URL.
            { # UrlMaps
                # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
              "description": "A String", # An optional description of this resource. Provide this property when you
                  # create the resource.
              "hosts": [ # The list of host patterns to match. They must be valid hostnames with
                  # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
                  # that case, * must be the first character, and if followed by
                  # anything, the immediate following character must be either -
                  # or ..
                  #
                  # * based matching is not supported when the URL map is bound
                  # to a target gRPC proxy that has the validateForProxyless field
                  # set to true.
                "A String",
              ],
              "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
                  # of the URL if the hostRule matches the URL's host portion.
            },
          ],
          "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
              # defined by the server.
          "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
              # url maps.
          "name": "A String", # Name of the resource. Provided by the client when the resource is created.
              # The name must be 1-63 characters long, and comply withRFC1035.
              # Specifically, the name must be 1-63 characters long and match the regular
              # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
              # character must be a lowercase letter, and all following characters must
              # be a dash, lowercase letter, or digit, except the last character, which
              # cannot be a dash.
          "pathMatchers": [ # The list of named PathMatchers to use against the URL.
            { # A matcher for the path portion of the URL. The BackendService
                # from the longest-matched rule will serve the URL. If no rule was matched, the
                # default service is used.
              "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # This policy takes
                  # effect at the PathMatcher level and applies only when no
                  # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
                  # in defaultCustomErrorResponsePolicy, then a policy defined for
                  # the error code in UrlMap.defaultCustomErrorResponsePolicy
                  # takes effect.
                  #
                  # For example, consider a UrlMap with the following
                  # configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy is configured
                  #      with policies for 5xx and 4xx errors
                  #      - A RouteRule for /coming_soon/ is configured for the
                  #      error code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in RouteRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # When
                  # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
                  # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
                  # a retry, if load balancer is successful in reaching the
                  # service, the defaultCustomErrorResponsePolicy is ignored and
                  # the response from the service is returned to the client.
                  #
                  # defaultCustomErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "defaultRouteAction": { # defaultRouteAction takes effect when none of the
                  # pathRules or routeRules match. The load balancer
                  # performs advanced routing actions, such as URL rewrites and
                  # header transformations, before forwarding the request to the
                  # selected backend.
                  #
                  #
                  # Only one of defaultUrlRedirect, defaultService
                  # or defaultRouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a path matcher'sdefaultRouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "defaultService": "A String", # The full or partial URL to the BackendService resource. This
                  # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
                  # matched. For example, the
                  # following are all valid URLs to a BackendService resource:
                  #
                  #
                  #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
                  #      - compute/v1/projects/project/global/backendServices/backendService
                  #      - global/backendServices/backendService
                  #
                  #
                  # If defaultRouteAction is also specified, advanced
                  # routing actions, such as URL rewrites, take effect before sending the
                  # request to the backend.
                  #
                  #
                  # Only one of defaultUrlRedirect, defaultService
                  # or defaultRouteAction.weightedBackendService can be set.
                  #
                  #
                  # Authorization requires one or more of the following Google IAM permissions on the
                  # specified resource default_service:
                  #
                  #
                  #       - compute.backendBuckets.use
                  #       - compute.backendServices.use
              "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
                  # by defaultUrlRedirect.
                  #
                  #
                  # Only one of defaultUrlRedirect, defaultService
                  # or defaultRouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
              "description": "A String", # An optional description of this resource. Provide this property when you
                  # create the resource.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                  # for the selected backend service.
                  #
                  # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
                  #
                  # HeaderAction is not supported for load balancers
                  # that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
              "pathRules": [ # The list of path rules. Use this list instead of routeRules
                  # when routing based on simple path matching is all that's required. A path
                  # rule can only include a wildcard character (*) after a
                  # forward slash character ("/").
                  #
                  # The order by which path rules are specified does not matter.
                  # Matches are always done on the longest-path-first basis.
                  #
                  # For example: a pathRule with a path /a/b/c/* will match
                  # before /a/b/* irrespective of the order in which those paths appear in this
                  # list.
                  #
                  # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
                { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
                  "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                      # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                      #
                      # If a policy for an
                      # error code is not configured for the PathRule, a policy for
                      # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                      # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                      # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                      # effect.
                      #
                      # For example, consider a UrlMap with the following configuration:
                      #
                      #
                      #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                      #      with policies for 5xx and 4xx errors
                      #      - A PathRule for /coming_soon/ is configured for the error
                      #      code 404.
                      #
                      # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                      # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                      # the policy in PathRule.customErrorResponsePolicy takes
                      # effect. If any of the requests in this example encounter a 500
                      # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                      #
                      # customErrorResponsePolicy is supported only for
                      # global external Application Load Balancers.
                      # backend service or backend bucket responds with an error.
                    "errorResponseRules": [ # Specifies rules for returning error responses.
                        #
                        # In a given policy, if you specify rules for both a range of error codes
                        # as well as rules for specific error codes then rules with specific error
                        # codes have a higher priority. For example, assume that you configure a rule
                        # for 401 (Un-authorized) code, and another for all 4 series
                        # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                        # However if the backend service returns a 403, the rule for4xx takes effect.
                      { # Specifies the mapping between the response code that will be returned along
                          # with the custom error content and the response code returned by the backend
                          # service.
                        "matchResponseCodes": [ # Valid values include:
                            #
                            #
                            #      - A number between 400 and 599: For example
                            #      401 or 503, in which case the load balancer
                            #      applies the policy if the error code exactly matches this value.
                            #      - 5xx: Load Balancer will apply the policy if the
                            #      backend service responds with any response code in the range of
                            #      500 to 599.
                            #    - 4xx: Load
                            #      Balancer will apply the policy if the backend service responds with any
                            #      response code in the range of 400 to
                            #      499.
                            #
                            # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                          "A String",
                        ],
                        "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                            # error content. If overrideResponseCode is not supplied, the
                            # same response code returned by the original backend bucket or backend
                            # service is returned to the client.
                        "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                            #
                            # path must start
                            # with a leading slash. path cannot have trailing slashes.
                            #
                            # If the file is not available in backendBucket  or the
                            # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                            #
                            # The value must
                            # be from 1 to 1024 characters
                      },
                    ],
                    "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                        # contains the custom error content. Examples are:
                        #
                        #
                        #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                        #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                        #      - global/backendBuckets/myBackendBucket
                        #
                        # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                        # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                        #
                        # If load balancer cannot reach
                        # the backendBucket, a simple Not Found Error will
                        # be returned, with the original response code (oroverrideResponseCode if configured).
                        #
                        # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                  },
                  "paths": [ # The list of path patterns to match. Each must start with /
                      # and the only place a * is allowed is at the end following
                      # a /.  The string fed to the path matcher does not include
                      # any text after the first ? or #, and
                      # those chars are not allowed here.
                    "A String",
                  ],
                  "routeAction": { # In response to a matching path, the load balancer
                      # performs advanced routing actions, such as URL rewrites and header
                      # transformations, before forwarding the request to the selected
                      # backend.
                      #
                      #
                      # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                      #
                      #
                      # URL maps for classic Application Load Balancers only support
                      # the urlRewrite action within a path rule'srouteAction.
                    "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                        # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                        # property must be specified. This policy cannot be specified if any target
                        # backend has Identity-Aware Proxy enabled.
                      "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                          # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                          # header names can be specified. The cache is bypassed for all `cacheMode`
                          # values.
                        "A String",
                      ],
                      "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                          # on the backend type: for Backend Services, the complete request URI is
                          # used; for Backend Buckets, the request URI is used without the protocol or
                          # host, and only query parameters known to Cloud Storage are included.
                          # Policy defined on Route Action.
                        "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                            # parameters will be included. Either specify `excludedQueryParameters`
                            # or `includedQueryParameters`, not both. '&' and '=' will be percent
                            # encoded and not treated as delimiters.
                            #
                            # Note: This field applies to routes that use backend services. Attempting
                            # to set it on a route that points exclusively to Backend Buckets will
                            # result in a configuration error. For routes that point to a Backend
                            # Bucket, use `includedQueryParameters` to define which parameters should
                            # be part of the cache key.
                          "A String",
                        ],
                        "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket, as the
                            # host is never included in a Backend Bucket's cache key. Attempting to set
                            # it on a route that points exclusively to Backend Buckets will result in a
                            # configuration error.
                        "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket, as the
                            # protocol is never included in a Backend Bucket's cache key. Attempting to
                            # set on a route that points exclusively to Backend Buckets will result in
                            # a configuration error.
                        "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                            # `includedQueryParameters` and `excludedQueryParameters`. If neither
                            # is set, the entire query string will be included. If false, the query
                            # string will be excluded from the cache key entirely.
                            #
                            # Note: This field applies to routes that use backend services. Attempting
                            # to set it on a route that points exclusively to Backend Buckets will
                            # result in a configuration error. For routes that point to a Backend
                            # Bucket, use `includedQueryParameters` to define which parameters should
                            # be part of the cache key.
                        "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                            # The name=value pair will be used in the cache key Cloud CDN generates.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket.
                            # Attempting to set it on a route that points exclusively to Backend
                            # Buckets will result in a configuration error. Up to 5 cookie names can be
                            # specified.
                          "A String",
                        ],
                        "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                          "A String",
                        ],
                        "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                            # parameters will be excluded. Either specify `includedQueryParameters`
                            # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                            # encoded and not treated as delimiters.
                          "A String",
                        ],
                      },
                      "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                          # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                      "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                          # content. This is used to clamp the max-age (or Expires) value sent to the
                          # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                          # is used for the response max-age directive, along with a "public"
                          # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                          # clamps the max-age from the origin (if specified), or else sets the
                          # response max-age directive to the lesser of the `clientTtl` and
                          # `defaultTtl`, and also ensures a "public" cache-control directive is
                          # present. The maximum allowed value is 31,622,400s (1 year). If not
                          # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                          # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                          # `USE_ORIGIN_HEADERS`.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                          # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                          # "always revalidate". The value of `defaultTtl` cannot be set to a value
                          # greater than that of `maxTtl`. When the `cacheMode` is set to
                          # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                          # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                          # accessed objects may be evicted from the cache before the defined TTL. If
                          # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                          # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                          # `USE_ORIGIN_HEADERS`.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                          # attempt to set a max-age or s-maxage higher than this, or an Expires header
                          # more than `maxTtl` seconds in the future will be capped at the value of
                          # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                          # Headers sent to the client will not be modified. Setting a TTL of "0" means
                          # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                          # Infrequently accessed objects may be evicted from the cache before the
                          # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                          # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                          # mode.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                          # to apply fine-grained caching for common errors or redirects.
                          # This can reduce the load on your origin and improve end-user
                          # experience by reducing response latency.
                          # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                          # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                          # the specified response code that lack any Cache-Control, Expires, or
                          # Pragma: no-cache directives. When the `cacheMode` is set to
                          # `FORCE_CACHE_ALL`, negative caching applies to all responses
                          # with the specified response code, and overrides any caching headers. By
                          # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                          #
                          # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                          # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                          # * 405 (Method Not Found), 501 (Not Implemented): 60s
                          #
                          # These defaults can be overridden in `negativeCachingPolicy`.
                          # If not specified, Cloud CDN applies negative caching by default.
                      "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                          # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                          # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                          # CDN's default cache TTLs. Note that when specifying an explicit
                          # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                          # all response codes that you wish to cache. Cloud CDN will not apply any
                          # default negative caching when a policy exists.
                        { # Specify CDN TTLs for response error codes.
                          "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                              # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                              # specified as values, and you cannot specify a status code more than
                              # once.
                          "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                              # corresponding status code.
                              # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                              # objects may be evicted from the cache before the defined TTL.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                        },
                      ],
                      "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                          # requests into a small number of requests to the origin. If not specified,
                          # Cloud CDN applies request coalescing by default.
                      "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                          # content with the origin, or when an error is encountered when refreshing
                          # the cache.
                          # This setting defines the default "max-stale" duration for any cached
                          # responses that do not specify a max-stale directive. Stale responses that
                          # exceed the TTL configured here will not be served. The default limit
                          # (max-stale) is 86400s (1 day), which will allow stale content to be
                          # served up to this limit beyond the max-age (or s-maxage) of a cached
                          # response.
                          # The maximum allowed value is 604800 (1 week).
                          # Set this to zero (0) to disable serve-while-stale.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                    "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                        # information about the W3C recommendation for cross-origin resource sharing
                        # (CORS), see Fetch API Living
                        # Standard.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy.
                        # information about the W3C recommendation for cross-origin resource sharing
                        # (CORS), see Fetch API Living
                        # Standard.
                      "allowCredentials": True or False, # In response to a preflight request, setting this to true
                          # indicates that
                          # the actual request can include user credentials. This field translates to
                          # the Access-Control-Allow-Credentials header.
                          #
                          # Default is false.
                      "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                          # header.
                        "A String",
                      ],
                      "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                          # header.
                        "A String",
                      ],
                      "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                          # more information, see regular expression syntax.
                          #
                          # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED.
                        "A String",
                      ],
                      "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                          #
                          # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                        "A String",
                      ],
                      "disabled": True or False, # If true, disables the CORS policy.
                          # The default value is false, which indicates that the CORS
                          # policy is in effect.
                      "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                          # header.
                        "A String",
                      ],
                      "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                          # seconds. This field translates to the Access-Control-Max-Age
                          # header.
                    },
                    "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                        # the resiliency of clients to backend service failure. As part of fault
                        # injection, when clients send requests to a backend service, delays can be
                        # introduced by a load balancer on a percentage of requests before sending
                        # those requests to the backend service. Similarly requests from clients can
                        # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                        # that are configured with a fault_injection_policy if:
                        # 1. The traffic is generated by fault injection AND
                        # 2. The fault injection is not a delay fault injection.
                        # Fault injection is not supported with the classic Application Load Balancer
                        # . To see which load balancers support fault injection,
                        # see Load
                        # balancing: Routing and traffic management features.
                        # the resiliency of clients to backend service failure. As part of fault
                        # injection, when clients send requests to a backend service, delays can be
                        # introduced by the load balancer on a percentage of requests before sending
                        # those request to the backend service. Similarly requests from clients can be
                        # aborted by the load balancer for a percentage of requests.
                      "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                          # injection.
                        "httpStatus": 42, # The HTTP status code used to abort the request.
                            #
                            # The value must be from 200 to 599 inclusive.
                            #
                            # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                            # according to this
                            # mapping table. HTTP status 200 is mapped to gRPC status
                            # UNKNOWN. Injecting an OK status is currently not supported by
                            # Traffic Director.
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                            # that is aborted as part of fault injection.
                            #
                            # The value must be from 0.0 to 100.0 inclusive.
                      },
                      "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                          # injection, before being sent to a backend service.
                          # request to the backend service as part of fault injection.
                        "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                            # which a delay is introduced as part of fault injection.
                            #
                            # The value must be from 0.0 to 100.0 inclusive.
                      },
                    },
                    "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                        # Global EXTERNAL_MANAGED load balancer schemes.
                        # Either Cloud CDN must be enabled on the backend service or backend bucket
                        # serving the route, or cache policy must be configured on the same route
                        # dynamically processes and delivers images from the network edge.
                        # Image Optimization is only available for Global External Application Load
                        # Balancers.
                        # Either Cloud CDN must be enabled on the backend service or backend bucket
                        # serving the route, or cache policy must be configured on the same route.
                      "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                    },
                    "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                        # Unlike the timeout field where the timeout duration starts
                        # from the time the request has been fully processed (known as*end-of-stream*),
                        # the duration in this field is computed from the beginning of the stream
                        # until the response has been processed, including all retries. A
                        # stream that does not complete in this duration is closed.
                        #
                        # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                        # with the route.
                        #
                        # This field is only allowed if the Url map is used with backend services
                        # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                        # are shadowed to a separate mirrored backend service. The load balancer does
                        # not wait for responses from the shadow service. Before sending traffic
                        # to the shadow service, the host / authority header is suffixed with-shadow.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # are shadowed to a separate mirrored backend service. The load balancer
                        # doesn't wait for responses from the shadow service. Before sending traffic
                        # to the shadow service, the host or authority header is suffixed with-shadow.
                      "backendService": "A String", # The full or partial URL to the BackendService resource being
                          # mirrored to.
                          #
                          # The backend service configured for a mirroring
                          # policy must reference backends that are of the same type as the original
                          # backend service matched in the URL map.
                          #
                          # Serverless NEG backends are not currently supported as a mirrored
                          # backend service.
                      "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                    },
                    "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                      "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                          # If not specified, defaults to 1.
                      "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                          #
                          # If not specified, will use the timeout set in theHttpRouteAction field.
                          # If timeout in the HttpRouteAction field is not set, this field
                          # uses the largest timeout
                          # among all backend services associated with the route.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has the validateForProxyless field set to true.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                          # values are:
                          #
                          #    - 5xx: retry is attempted if the instance or endpoint
                          #    responds with any 5xx response code, or if the instance or
                          #    endpoint does not respond at all. For example, disconnects, reset, read
                          #    timeout, connection failure, and refused streams.
                          #    - gateway-error: Similar to 5xx, but only
                          #    applies to response codes 502, 503 or504.
                          #    - connect-failure: a retry is attempted on failures
                          #    connecting to the instance or endpoint. For example, connection
                          #    timeouts.
                          #    - retriable-4xx: a retry is attempted if the instance
                          #    or endpoint responds with a 4xx response code.
                          #    The only error that you can retry is error code 409.
                          #    - refused-stream: a retry is attempted if the instance
                          #    or endpoint resets the stream with a REFUSED_STREAM error
                          #    code. This reset type indicates that it is safe to retry.
                          #    - cancelled: a retry is attempted if the gRPC status
                          #    code in the response header is set to cancelled.
                          #    - deadline-exceeded: a retry is attempted if the gRPC
                          #    status code in the response header is set todeadline-exceeded.
                          #    - internal: a retry is attempted if the gRPC
                          #    status code in the response header is set tointernal.
                          #    - resource-exhausted: a retry is attempted if the gRPC
                          #    status code in the response header is set toresource-exhausted.
                          #    - unavailable: a retry is attempted if the gRPC
                          #    status code in the response header is set tounavailable.
                          #
                          # Only the following codes are supported when the URL map is bound to
                          # target gRPC proxy that has validateForProxyless field set to true.
                          #
                          #    - cancelled
                          #    - deadline-exceeded
                          #    - internal
                          #    - resource-exhausted
                          #    - unavailable
                        "A String",
                      ],
                    },
                    "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                        # time the request has been fully processed (known as *end-of-stream*)
                        # up until the response has been processed. Timeout includes
                        # all retries.
                        #
                        # If not specified, this field uses the largest timeout among all backend
                        # services associated with the route.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                        # to the matched service.
                        #
                        #  urlRewrite is the only action supported in UrlMaps
                        # for classic Application Load Balancers.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # backend service.
                      "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                          # host header is replaced with contents of hostRewrite.
                          #
                          # The value must be from 1 to 255 characters.
                      "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                          # matching portion of the request's path is replaced bypathPrefixRewrite.
                          #
                          # The value must be from 1 to 1024 characters.
                      "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                          # header) using the HTTP template syntax.
                          #
                          # A corresponding
                          # path_template_match must be specified. Any template variables must exist in
                          # the path_template_match field.
                          #
                          #
                          #       - -At least one variable must be specified in the path_template_match
                          #       field
                          #    - You can omit variables from the rewritten URL
                          #       - The * and ** operators cannot be matched
                          #       unless they have a corresponding variable name - e.g.
                          #       {format=*} or {var=**}.
                          #
                          # For example, a path_template_match of /static/{format=**}
                          # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                          # rewrite, so that /{country}/{format}/{suffix=**} can be
                          # rewritten as /content/{format}/{country}/{suffix}.
                          #
                          # At least
                          # one non-empty routeRules[].matchRules[].path_template_match is
                          # required.
                          #
                          # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                      "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                        "pathPattern": "A String", # The regular expression used to match against the URL path.
                            # It uses RE2 syntax with the following constraints:
                            #
                            #
                            #      - Any single character operators
                            #      - Groups are allowed to have only submatch operator inside
                            #      - Groups are allowed only without any char repetition, e.g.
                            #      .*
                            #      - Any char repetition, e.g. .*, is
                            #      only allowed to be used in a single regex together with:
                            #
                            #
                            #             - Empty string operators
                            #             - Other repetitions
                            #             - Ranges
                            #             - Repetitions of ranges
                            #
                            #
                            #      - Ranges are only allowed to have:
                            #
                            #
                            #             - Character range
                            #             - Digits range
                            #             - Symbols listed in characters allowed for ranges
                        "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                            # the path.
                      },
                    },
                    "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                        # occurs. The weights determine the fraction of traffic that flows to
                        # their corresponding backend service. If all traffic needs to
                        # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                        #
                        # After a backend service is identified and before forwarding
                        # the request to
                        # the backend service, advanced routing actions such as URL rewrites and
                        # header transformations are applied depending on additional settings
                        # specified in this HttpRouteAction.
                      { # In contrast to a single BackendService in
                          # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                          # multiple backend services. The volume of traffic for each
                          # backend service is proportional to the weight specified
                          # in each WeightedBackendService
                        "backendService": "A String", # The full or partial URL to the default BackendService
                            # resource. Before
                            # forwarding the request to backendService, the load balancer
                            # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                        "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                            # effect for the selected backendService.
                            #
                            # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                            #
                            # headerAction is not supported for load balancers that have
                            # their loadBalancingScheme set to EXTERNAL.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has validateForProxyless field set to true.
                            # the request is passed along to the selected backendService.
                          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values
                                  # that already
                                  # exist for the header. If true, headerValue is set for the
                                  # header, discarding any values that were set for that header.
                                  #
                                  # The default value is true,
                                  # unless a variable is present in headerValue,
                                  # in which case the default value is false.
                                  # .
                            },
                          ],
                          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                              # request before forwarding the request to the backendService.
                            "A String",
                          ],
                          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                              # client.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values
                                  # that already
                                  # exist for the header. If true, headerValue is set for the
                                  # header, discarding any values that were set for that header.
                                  #
                                  # The default value is true,
                                  # unless a variable is present in headerValue,
                                  # in which case the default value is false.
                                  # .
                            },
                          ],
                          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                              # response before sending the response back to the client.
                            "A String",
                          ],
                        },
                        "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                            # computed asweight / (sum of all weightedBackendService weights in routeAction).
                            #
                            # The selection of a backend service is determined only for new traffic.
                            # Once a user's request has been directed to a backend service,
                            # subsequent requests are sent to the same backend service as
                            # determined by the backend service's session affinity policy.
                            # Don't configure session affinity if you're using weighted traffic
                            # splitting. If you do, the weighted traffic splitting configuration takes
                            # precedence.
                            #
                            # The value must be from 0 to 1000.
                      },
                    ],
                  },
                  "service": "A String", # The full or partial URL of the backend service resource to which traffic
                      # is directed if this rule is matched. If routeAction is
                      # also specified, advanced routing actions, such as URL rewrites,
                      # take effect before sending the request to the backend.
                      #
                      #
                      # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                      # specified by urlRedirect.
                      #
                      #
                      # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                      #
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                        # was supplied in the request.
                        #
                        # The value must be from 1 to 255
                        # characters.
                    "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                        # set to HTTPS.
                        # If set to false, the URL scheme of the redirected request
                        # remains the same as that of the request.
                        #
                        # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                        #
                        # The default is set to false.
                    "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                        # that was supplied in the request.
                        #
                        # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                        # supplied, the path of the original request is used for the redirect.
                        #
                        # The value must be from 1 to 1024 characters.
                    "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                        # the HttpRouteRuleMatch, retaining the remaining portion
                        # of the URL before redirecting the request.
                        #
                        # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                        # supplied, the path of the original request is used for the redirect.
                        #
                        # The value must be from 1 to 1024 characters.
                    "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                        #
                        # Supported values are:
                        #
                        #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                        #    to 301.
                        #    - FOUND, which corresponds to 302.
                        #    - SEE_OTHER which corresponds to 303.
                        #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                        #    method is retained.
                        #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                        #    method is retained.
                    "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                        # URL is
                        # removed before redirecting the request. If set to false, the
                        # query portion of the original URL is retained.
                        #
                        # The default is set to false.
                  },
                },
              ],
              "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
                  # desired. routeRules are evaluated in order of priority, from
                  # the lowest to highest number.
                  #
                  # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
                { # The HttpRouteRule setting specifies how to match an HTTP request
                    # and the corresponding routing action that load balancing proxies perform.
                  "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                      # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                      #
                      # If a policy for an
                      # error code is not configured for the RouteRule, a policy for
                      # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                      # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                      # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                      # effect.
                      #
                      # For example, consider a UrlMap with the following configuration:
                      #
                      #
                      #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                      #      with policies for 5xx and 4xx errors
                      #      - A RouteRule for /coming_soon/ is configured for the
                      #      error code 404.
                      #
                      # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                      # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                      # the policy in RouteRule.customErrorResponsePolicy takes
                      # effect. If any of the requests in this example encounter a 500
                      # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                      #
                      # When
                      # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                      # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                      # a retry, if load balancer is successful in reaching the
                      # service, the customErrorResponsePolicy is ignored and
                      # the response from the service is returned to the client.
                      #
                      # customErrorResponsePolicy is supported only for
                      # global external Application Load Balancers.
                      # backend service or backend bucket responds with an error.
                    "errorResponseRules": [ # Specifies rules for returning error responses.
                        #
                        # In a given policy, if you specify rules for both a range of error codes
                        # as well as rules for specific error codes then rules with specific error
                        # codes have a higher priority. For example, assume that you configure a rule
                        # for 401 (Un-authorized) code, and another for all 4 series
                        # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                        # However if the backend service returns a 403, the rule for4xx takes effect.
                      { # Specifies the mapping between the response code that will be returned along
                          # with the custom error content and the response code returned by the backend
                          # service.
                        "matchResponseCodes": [ # Valid values include:
                            #
                            #
                            #      - A number between 400 and 599: For example
                            #      401 or 503, in which case the load balancer
                            #      applies the policy if the error code exactly matches this value.
                            #      - 5xx: Load Balancer will apply the policy if the
                            #      backend service responds with any response code in the range of
                            #      500 to 599.
                            #    - 4xx: Load
                            #      Balancer will apply the policy if the backend service responds with any
                            #      response code in the range of 400 to
                            #      499.
                            #
                            # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                          "A String",
                        ],
                        "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                            # error content. If overrideResponseCode is not supplied, the
                            # same response code returned by the original backend bucket or backend
                            # service is returned to the client.
                        "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                            #
                            # path must start
                            # with a leading slash. path cannot have trailing slashes.
                            #
                            # If the file is not available in backendBucket  or the
                            # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                            #
                            # The value must
                            # be from 1 to 1024 characters
                      },
                    ],
                    "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                        # contains the custom error content. Examples are:
                        #
                        #
                        #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                        #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                        #      - global/backendBuckets/myBackendBucket
                        #
                        # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                        # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                        #
                        # If load balancer cannot reach
                        # the backendBucket, a simple Not Found Error will
                        # be returned, with the original response code (oroverrideResponseCode if configured).
                        #
                        # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                  },
                  "description": "A String", # The short description conveying the intent of this routeRule.
                      #
                      #
                      # The description can have a maximum length of 1024 characters.
                  "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                      # for the selected backendService.
                      #
                      # The headerAction value specified here is applied before the
                      # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                      #
                      # HeaderAction is not supported for load balancers
                      # that have
                      # their loadBalancingScheme set to EXTERNAL.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                      # the request is passed along to the selected backendService.
                    "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values
                            # that already
                            # exist for the header. If true, headerValue is set for the
                            # header, discarding any values that were set for that header.
                            #
                            # The default value is true,
                            # unless a variable is present in headerValue,
                            # in which case the default value is false.
                            # .
                      },
                    ],
                    "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                        # request before forwarding the request to the backendService.
                      "A String",
                    ],
                    "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                        # client.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values
                            # that already
                            # exist for the header. If true, headerValue is set for the
                            # header, discarding any values that were set for that header.
                            #
                            # The default value is true,
                            # unless a variable is present in headerValue,
                            # in which case the default value is false.
                            # .
                      },
                    ],
                    "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                        # response before sending the response back to the client.
                      "A String",
                    ],
                  },
                  "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                      # Director. httpFilterConfigs only applies for load balancers
                      # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                      # more details.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                    { # HttpFilterConfiguration supplies additional contextual settings
                        # for networkservices.HttpFilter resources enabled by Traffic
                        # Director.
                      "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                          # YAML formatted and only contain fields defined in the protobuf identified
                          # in configTypeUrl
                      "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                          # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                      "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                          # configuration belongs to. This name must be known to the xDS client.
                          # Example: envoy.wasm
                    },
                  ],
                  "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                      # Director. httpFilterMetadata only applies for load balancers
                      # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                      # more details.
                      #
                      #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                    { # HttpFilterConfiguration supplies additional contextual settings
                        # for networkservices.HttpFilter resources enabled by Traffic
                        # Director.
                      "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                          # YAML formatted and only contain fields defined in the protobuf identified
                          # in configTypeUrl
                      "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                          # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                      "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                          # configuration belongs to. This name must be known to the xDS client.
                          # Example: envoy.wasm
                    },
                  ],
                  "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                      # this routeRule when any of thematchRules are satisfied. However predicates within
                      # a given matchRule have AND semantics. All predicates
                      # within a matchRule must match for the request to
                      # match the rule.
                    { # HttpRouteRuleMatch specifies a set of criteria for matching
                        # requests to an HttpRouteRule. All specified criteria must
                        # be satisfied for a match to occur.
                      "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                          # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                          # that may be part of the original URL.
                          #
                          # fullPathMatch must be from 1 to 1024 characters.
                          #
                          # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                          # specified.
                      "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                          # corresponding headers in the request.
                        { # matchRule criteria for request header matches.
                          "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                              #
                              # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          "headerName": "A String", # The name of the HTTP header to match.
                              #
                              # For matching against the HTTP request's authority, use a headerMatch
                              # with the header name ":authority".
                              #
                              # For matching a request's method, use the headerName ":method".
                              #
                              # When the URL map is bound to a target gRPC proxy that has
                              # the validateForProxyless field set to true, only
                              # non-binary
                              # user-specified custom metadata and the `content-type` header are supported.
                              # The following transport-level headers cannot be used in header matching
                              # rules:
                              # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                              # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                              # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                              # `grpc-timeout` and `grpc-trace-bin`.
                          "invertMatch": True or False, # If set to false, the headerMatch is considered a
                              # match if the preceding match criteria are met. If set to true,
                              # the headerMatch is considered a match if the preceding
                              # match criteria are NOT met.
                              #
                              # The default setting is false.
                          "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                              #
                              # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          "presentMatch": True or False, # A header with the contents of headerName must exist. The
                              # match takes place whether or not the request's header has a value.
                              #
                              # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                              # specified in rangeMatch. If the header does not contain an
                              # integer, number or is empty, the match fails.
                              #
                              # For example for a range [-5, 0]
                              #
                              #
                              #       - -3 will match.
                              #       - 0 will not match.
                              #       - 0.25 will not match.
                              #       - -3someString will not match.
                              #
                              # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                              #
                              # rangeMatch is not supported for load balancers
                              # that have loadBalancingScheme set to EXTERNAL.
                              # within the specified integer range.
                            "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                            "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                          },
                          "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                              # For more information about regular expression syntax, see Syntax.
                              #
                              # For matching against a port specified in the HTTP request, use a
                              # headerMatch with headerName set to PORT and a regular expression that
                              # satisfies the RFC2616 Host header's port specifier.
                              #
                              # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                              #
                              # Regular expressions can only be used when the loadBalancingScheme is
                              # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                              # (regional scope) or INTERNAL_MANAGED.
                          "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                              #
                              # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                        },
                      ],
                      "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                          # matches are case sensitive.
                          #
                          # The default value is false.
                          #
                          # ignoreCase must not be used with regexMatch.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy.
                      "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                          # configuration to a limited set of xDS
                          # compliant clients. In their xDS requests to the load balancer, xDS clients
                          # present node
                          # metadata. When there is a match, the relevant routing configuration
                          # is made available to those proxies.
                          #
                          # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                          # the metadata. If its filterMatchCriteria is set to
                          # MATCH_ALL, then all of its filterLabels must match with
                          # corresponding labels provided in the metadata. If multiple
                          # metadata filters are specified, all of them need to be
                          # satisfied in order to be considered a match.
                          #
                          # metadataFilters specified here is applied after those
                          # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                          #
                          # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has validateForProxyless field set to true.
                        { # Opaque filter criteria used by load balancers to restrict routing
                            # configuration to a limited set of load balancing proxies. Proxies and
                            # sidecars involved in load balancing would typically present metadata to the
                            # load balancers that need to match criteria specified here. If a match takes
                            # place, the relevant configuration is made available to those
                            # proxies.
                            #
                            # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                            # one of thefilterLabels must match the corresponding label provided in
                            # the metadata. If its filterMatchCriteria is set to
                            # MATCH_ALL, then all of its filterLabels must match with
                            # corresponding labels provided in the metadata.
                            #
                            # An example for using metadataFilters would be: if
                            # load balancing involves
                            # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                          "filterLabels": [ # The list of label value pairs that must match labels in the provided
                              # metadata based on filterMatchCriteria
                              #
                              # This list must not be empty and can have at the most 64 entries.
                            { # MetadataFilter label name value pairs that are expected
                                # to match corresponding labels presented as metadata to the load balancer.
                              "name": "A String", # Name of metadata label.
                                  #
                                  #  The name can have a maximum length of 1024 characters and must be at
                                  # least 1 character long.
                              "value": "A String", # The value of the label must match the specified value.
                                  #
                                  # value can have a maximum length of 1024 characters.
                            },
                          ],
                          "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                              # within the list of filterLabels and contributes toward the
                              # overall metadataFilter match.
                              #
                              #  Supported values are:
                              #
                              #    - MATCH_ANY: at least one of the filterLabels
                              #    must have a matching label in the provided metadata.
                              #    - MATCH_ALL: all filterLabels must have
                              #    matching labels in the provided metadata.
                        },
                      ],
                      "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                          # the :path header after the query string is removed.
                          #
                          # A path template pattern can include variables and wildcards.
                          # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                          # matches a single path segment, and ** that matches zero or
                          # more path segments. The pattern must follow these rules:
                          #
                          #
                          #       - The value must be between 1 and 1024 characters.
                          #       - The pattern must start with a leading slash ("/").
                          #       - No more than 5 operators (variables or wildcards) may appear in
                          #       the pattern.
                          #
                          # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                          # set.
                      "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                          # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                          #
                          # The value must be from 1 to 1024 characters.
                          #
                          # The * character inside a prefix match is
                          # treated as a literal character, not as a wildcard.
                          #
                          # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                          # used within a matchRule.
                      "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                          # match corresponding query parameters in the request.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy.
                        { # HttpRouteRuleMatch criteria for a request's query parameter.
                          "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                              # parameter exactly matches the contents of exactMatch.
                              #
                              # Only one of presentMatch, exactMatch, orregexMatch must be set.
                          "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                              # the request, in the absence of which the request match fails.
                          "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                              # request contains the query parameter, irrespective of whether the
                              # parameter has a value or not.
                              #
                              # Only one of presentMatch, exactMatch, orregexMatch must be set.
                          "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                              # parameter matches the regular expression specified byregexMatch. For
                              # more information about regular expression syntax, see Syntax.
                              #
                              # Only one of presentMatch, exactMatch, orregexMatch must be set.
                              #
                              # Regular expressions can only be used when the loadBalancingScheme is
                              # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                              # (regional scope) or INTERNAL_MANAGED.
                        },
                      ],
                      "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                          # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                          # supplied with the original URL. For
                          # more information about regular expression syntax, see Syntax.
                          #
                          # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                          # specified.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                    },
                  ],
                  "priority": 42, # For routeRules within a given pathMatcher,
                      # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                      # of priority, from the lowest to highest number. The priority of a
                      # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                      # that matches the request is applied.
                      #
                      #
                      # You cannot configure two or more routeRules with the same priority.
                      # Priority for each rule must be set to a number from 0 to 2147483647
                      # inclusive.
                      #
                      #
                      # Priority numbers can have gaps, which enable you to add or remove rules
                      # in the future without affecting the rest of the rules. For example, 1, 2,
                      # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                      # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                      # without any impact on existing rules.
                  "routeAction": { # In response to a matching matchRule, the load balancer
                      # performs advanced routing actions, such as URL rewrites and header
                      # transformations, before forwarding the request to the selected backend.
                      #
                      #
                      # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                      #
                      #
                      # URL maps for classic Application Load Balancers only support
                      # the urlRewrite action within a route rule'srouteAction.
                    "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                        # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                        # property must be specified. This policy cannot be specified if any target
                        # backend has Identity-Aware Proxy enabled.
                      "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                          # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                          # header names can be specified. The cache is bypassed for all `cacheMode`
                          # values.
                        "A String",
                      ],
                      "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                          # on the backend type: for Backend Services, the complete request URI is
                          # used; for Backend Buckets, the request URI is used without the protocol or
                          # host, and only query parameters known to Cloud Storage are included.
                          # Policy defined on Route Action.
                        "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                            # parameters will be included. Either specify `excludedQueryParameters`
                            # or `includedQueryParameters`, not both. '&' and '=' will be percent
                            # encoded and not treated as delimiters.
                            #
                            # Note: This field applies to routes that use backend services. Attempting
                            # to set it on a route that points exclusively to Backend Buckets will
                            # result in a configuration error. For routes that point to a Backend
                            # Bucket, use `includedQueryParameters` to define which parameters should
                            # be part of the cache key.
                          "A String",
                        ],
                        "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket, as the
                            # host is never included in a Backend Bucket's cache key. Attempting to set
                            # it on a route that points exclusively to Backend Buckets will result in a
                            # configuration error.
                        "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket, as the
                            # protocol is never included in a Backend Bucket's cache key. Attempting to
                            # set on a route that points exclusively to Backend Buckets will result in
                            # a configuration error.
                        "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                            # `includedQueryParameters` and `excludedQueryParameters`. If neither
                            # is set, the entire query string will be included. If false, the query
                            # string will be excluded from the cache key entirely.
                            #
                            # Note: This field applies to routes that use backend services. Attempting
                            # to set it on a route that points exclusively to Backend Buckets will
                            # result in a configuration error. For routes that point to a Backend
                            # Bucket, use `includedQueryParameters` to define which parameters should
                            # be part of the cache key.
                        "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                            # The name=value pair will be used in the cache key Cloud CDN generates.
                            #
                            # Note: This setting is only applicable to routes that use a Backend
                            # Service. It does not affect requests served by a Backend Bucket.
                            # Attempting to set it on a route that points exclusively to Backend
                            # Buckets will result in a configuration error. Up to 5 cookie names can be
                            # specified.
                          "A String",
                        ],
                        "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                          "A String",
                        ],
                        "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                            # parameters will be excluded. Either specify `includedQueryParameters`
                            # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                            # encoded and not treated as delimiters.
                          "A String",
                        ],
                      },
                      "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                          # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                      "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                          # content. This is used to clamp the max-age (or Expires) value sent to the
                          # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                          # is used for the response max-age directive, along with a "public"
                          # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                          # clamps the max-age from the origin (if specified), or else sets the
                          # response max-age directive to the lesser of the `clientTtl` and
                          # `defaultTtl`, and also ensures a "public" cache-control directive is
                          # present. The maximum allowed value is 31,622,400s (1 year). If not
                          # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                          # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                          # `USE_ORIGIN_HEADERS`.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                          # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                          # "always revalidate". The value of `defaultTtl` cannot be set to a value
                          # greater than that of `maxTtl`. When the `cacheMode` is set to
                          # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                          # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                          # accessed objects may be evicted from the cache before the defined TTL. If
                          # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                          # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                          # `USE_ORIGIN_HEADERS`.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                          # attempt to set a max-age or s-maxage higher than this, or an Expires header
                          # more than `maxTtl` seconds in the future will be capped at the value of
                          # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                          # Headers sent to the client will not be modified. Setting a TTL of "0" means
                          # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                          # Infrequently accessed objects may be evicted from the cache before the
                          # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                          # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                          # mode.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                          # to apply fine-grained caching for common errors or redirects.
                          # This can reduce the load on your origin and improve end-user
                          # experience by reducing response latency.
                          # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                          # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                          # the specified response code that lack any Cache-Control, Expires, or
                          # Pragma: no-cache directives. When the `cacheMode` is set to
                          # `FORCE_CACHE_ALL`, negative caching applies to all responses
                          # with the specified response code, and overrides any caching headers. By
                          # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                          #
                          # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                          # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                          # * 405 (Method Not Found), 501 (Not Implemented): 60s
                          #
                          # These defaults can be overridden in `negativeCachingPolicy`.
                          # If not specified, Cloud CDN applies negative caching by default.
                      "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                          # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                          # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                          # CDN's default cache TTLs. Note that when specifying an explicit
                          # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                          # all response codes that you wish to cache. Cloud CDN will not apply any
                          # default negative caching when a policy exists.
                        { # Specify CDN TTLs for response error codes.
                          "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                              # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                              # specified as values, and you cannot specify a status code more than
                              # once.
                          "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                              # corresponding status code.
                              # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                              # objects may be evicted from the cache before the defined TTL.
                              # as a count of seconds and fractions of seconds at nanosecond
                              # resolution. It is independent of any calendar and concepts like "day"
                              # or "month". Range is approximately 10,000 years.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                                # Durations less than one second are represented with a 0
                                # `seconds` field and a positive `nanos` field. Must be from 0
                                # to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                        },
                      ],
                      "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                          # requests into a small number of requests to the origin. If not specified,
                          # Cloud CDN applies request coalescing by default.
                      "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                          # content with the origin, or when an error is encountered when refreshing
                          # the cache.
                          # This setting defines the default "max-stale" duration for any cached
                          # responses that do not specify a max-stale directive. Stale responses that
                          # exceed the TTL configured here will not be served. The default limit
                          # (max-stale) is 86400s (1 day), which will allow stale content to be
                          # served up to this limit beyond the max-age (or s-maxage) of a cached
                          # response.
                          # The maximum allowed value is 604800 (1 week).
                          # Set this to zero (0) to disable serve-while-stale.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                    "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                        # information about the W3C recommendation for cross-origin resource sharing
                        # (CORS), see Fetch API Living
                        # Standard.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy.
                        # information about the W3C recommendation for cross-origin resource sharing
                        # (CORS), see Fetch API Living
                        # Standard.
                      "allowCredentials": True or False, # In response to a preflight request, setting this to true
                          # indicates that
                          # the actual request can include user credentials. This field translates to
                          # the Access-Control-Allow-Credentials header.
                          #
                          # Default is false.
                      "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                          # header.
                        "A String",
                      ],
                      "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                          # header.
                        "A String",
                      ],
                      "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                          # more information, see regular expression syntax.
                          #
                          # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED.
                        "A String",
                      ],
                      "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                          #
                          # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                        "A String",
                      ],
                      "disabled": True or False, # If true, disables the CORS policy.
                          # The default value is false, which indicates that the CORS
                          # policy is in effect.
                      "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                          # header.
                        "A String",
                      ],
                      "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                          # seconds. This field translates to the Access-Control-Max-Age
                          # header.
                    },
                    "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                        # the resiliency of clients to backend service failure. As part of fault
                        # injection, when clients send requests to a backend service, delays can be
                        # introduced by a load balancer on a percentage of requests before sending
                        # those requests to the backend service. Similarly requests from clients can
                        # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                        # that are configured with a fault_injection_policy if:
                        # 1. The traffic is generated by fault injection AND
                        # 2. The fault injection is not a delay fault injection.
                        # Fault injection is not supported with the classic Application Load Balancer
                        # . To see which load balancers support fault injection,
                        # see Load
                        # balancing: Routing and traffic management features.
                        # the resiliency of clients to backend service failure. As part of fault
                        # injection, when clients send requests to a backend service, delays can be
                        # introduced by the load balancer on a percentage of requests before sending
                        # those request to the backend service. Similarly requests from clients can be
                        # aborted by the load balancer for a percentage of requests.
                      "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                          # injection.
                        "httpStatus": 42, # The HTTP status code used to abort the request.
                            #
                            # The value must be from 200 to 599 inclusive.
                            #
                            # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                            # according to this
                            # mapping table. HTTP status 200 is mapped to gRPC status
                            # UNKNOWN. Injecting an OK status is currently not supported by
                            # Traffic Director.
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                            # that is aborted as part of fault injection.
                            #
                            # The value must be from 0.0 to 100.0 inclusive.
                      },
                      "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                          # injection, before being sent to a backend service.
                          # request to the backend service as part of fault injection.
                        "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                            # which a delay is introduced as part of fault injection.
                            #
                            # The value must be from 0.0 to 100.0 inclusive.
                      },
                    },
                    "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                        # Global EXTERNAL_MANAGED load balancer schemes.
                        # Either Cloud CDN must be enabled on the backend service or backend bucket
                        # serving the route, or cache policy must be configured on the same route
                        # dynamically processes and delivers images from the network edge.
                        # Image Optimization is only available for Global External Application Load
                        # Balancers.
                        # Either Cloud CDN must be enabled on the backend service or backend bucket
                        # serving the route, or cache policy must be configured on the same route.
                      "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                    },
                    "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                        # Unlike the timeout field where the timeout duration starts
                        # from the time the request has been fully processed (known as*end-of-stream*),
                        # the duration in this field is computed from the beginning of the stream
                        # until the response has been processed, including all retries. A
                        # stream that does not complete in this duration is closed.
                        #
                        # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                        # with the route.
                        #
                        # This field is only allowed if the Url map is used with backend services
                        # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                        # are shadowed to a separate mirrored backend service. The load balancer does
                        # not wait for responses from the shadow service. Before sending traffic
                        # to the shadow service, the host / authority header is suffixed with-shadow.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # are shadowed to a separate mirrored backend service. The load balancer
                        # doesn't wait for responses from the shadow service. Before sending traffic
                        # to the shadow service, the host or authority header is suffixed with-shadow.
                      "backendService": "A String", # The full or partial URL to the BackendService resource being
                          # mirrored to.
                          #
                          # The backend service configured for a mirroring
                          # policy must reference backends that are of the same type as the original
                          # backend service matched in the URL map.
                          #
                          # Serverless NEG backends are not currently supported as a mirrored
                          # backend service.
                      "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                    },
                    "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                      "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                          # If not specified, defaults to 1.
                      "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                          #
                          # If not specified, will use the timeout set in theHttpRouteAction field.
                          # If timeout in the HttpRouteAction field is not set, this field
                          # uses the largest timeout
                          # among all backend services associated with the route.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has the validateForProxyless field set to true.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                          # values are:
                          #
                          #    - 5xx: retry is attempted if the instance or endpoint
                          #    responds with any 5xx response code, or if the instance or
                          #    endpoint does not respond at all. For example, disconnects, reset, read
                          #    timeout, connection failure, and refused streams.
                          #    - gateway-error: Similar to 5xx, but only
                          #    applies to response codes 502, 503 or504.
                          #    - connect-failure: a retry is attempted on failures
                          #    connecting to the instance or endpoint. For example, connection
                          #    timeouts.
                          #    - retriable-4xx: a retry is attempted if the instance
                          #    or endpoint responds with a 4xx response code.
                          #    The only error that you can retry is error code 409.
                          #    - refused-stream: a retry is attempted if the instance
                          #    or endpoint resets the stream with a REFUSED_STREAM error
                          #    code. This reset type indicates that it is safe to retry.
                          #    - cancelled: a retry is attempted if the gRPC status
                          #    code in the response header is set to cancelled.
                          #    - deadline-exceeded: a retry is attempted if the gRPC
                          #    status code in the response header is set todeadline-exceeded.
                          #    - internal: a retry is attempted if the gRPC
                          #    status code in the response header is set tointernal.
                          #    - resource-exhausted: a retry is attempted if the gRPC
                          #    status code in the response header is set toresource-exhausted.
                          #    - unavailable: a retry is attempted if the gRPC
                          #    status code in the response header is set tounavailable.
                          #
                          # Only the following codes are supported when the URL map is bound to
                          # target gRPC proxy that has validateForProxyless field set to true.
                          #
                          #    - cancelled
                          #    - deadline-exceeded
                          #    - internal
                          #    - resource-exhausted
                          #    - unavailable
                        "A String",
                      ],
                    },
                    "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                        # time the request has been fully processed (known as *end-of-stream*)
                        # up until the response has been processed. Timeout includes
                        # all retries.
                        #
                        # If not specified, this field uses the largest timeout among all backend
                        # services associated with the route.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                        # to the matched service.
                        #
                        #  urlRewrite is the only action supported in UrlMaps
                        # for classic Application Load Balancers.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # backend service.
                      "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                          # host header is replaced with contents of hostRewrite.
                          #
                          # The value must be from 1 to 255 characters.
                      "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                          # matching portion of the request's path is replaced bypathPrefixRewrite.
                          #
                          # The value must be from 1 to 1024 characters.
                      "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                          # header) using the HTTP template syntax.
                          #
                          # A corresponding
                          # path_template_match must be specified. Any template variables must exist in
                          # the path_template_match field.
                          #
                          #
                          #       - -At least one variable must be specified in the path_template_match
                          #       field
                          #    - You can omit variables from the rewritten URL
                          #       - The * and ** operators cannot be matched
                          #       unless they have a corresponding variable name - e.g.
                          #       {format=*} or {var=**}.
                          #
                          # For example, a path_template_match of /static/{format=**}
                          # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                          # rewrite, so that /{country}/{format}/{suffix=**} can be
                          # rewritten as /content/{format}/{country}/{suffix}.
                          #
                          # At least
                          # one non-empty routeRules[].matchRules[].path_template_match is
                          # required.
                          #
                          # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                      "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                        "pathPattern": "A String", # The regular expression used to match against the URL path.
                            # It uses RE2 syntax with the following constraints:
                            #
                            #
                            #      - Any single character operators
                            #      - Groups are allowed to have only submatch operator inside
                            #      - Groups are allowed only without any char repetition, e.g.
                            #      .*
                            #      - Any char repetition, e.g. .*, is
                            #      only allowed to be used in a single regex together with:
                            #
                            #
                            #             - Empty string operators
                            #             - Other repetitions
                            #             - Ranges
                            #             - Repetitions of ranges
                            #
                            #
                            #      - Ranges are only allowed to have:
                            #
                            #
                            #             - Character range
                            #             - Digits range
                            #             - Symbols listed in characters allowed for ranges
                        "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                            # the path.
                      },
                    },
                    "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                        # occurs. The weights determine the fraction of traffic that flows to
                        # their corresponding backend service. If all traffic needs to
                        # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                        #
                        # After a backend service is identified and before forwarding
                        # the request to
                        # the backend service, advanced routing actions such as URL rewrites and
                        # header transformations are applied depending on additional settings
                        # specified in this HttpRouteAction.
                      { # In contrast to a single BackendService in
                          # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                          # multiple backend services. The volume of traffic for each
                          # backend service is proportional to the weight specified
                          # in each WeightedBackendService
                        "backendService": "A String", # The full or partial URL to the default BackendService
                            # resource. Before
                            # forwarding the request to backendService, the load balancer
                            # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                        "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                            # effect for the selected backendService.
                            #
                            # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                            #
                            # headerAction is not supported for load balancers that have
                            # their loadBalancingScheme set to EXTERNAL.
                            #
                            # Not supported when the URL map is bound to a target gRPC proxy that
                            # has validateForProxyless field set to true.
                            # the request is passed along to the selected backendService.
                          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values
                                  # that already
                                  # exist for the header. If true, headerValue is set for the
                                  # header, discarding any values that were set for that header.
                                  #
                                  # The default value is true,
                                  # unless a variable is present in headerValue,
                                  # in which case the default value is false.
                                  # .
                            },
                          ],
                          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                              # request before forwarding the request to the backendService.
                            "A String",
                          ],
                          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                              # client.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values
                                  # that already
                                  # exist for the header. If true, headerValue is set for the
                                  # header, discarding any values that were set for that header.
                                  #
                                  # The default value is true,
                                  # unless a variable is present in headerValue,
                                  # in which case the default value is false.
                                  # .
                            },
                          ],
                          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                              # response before sending the response back to the client.
                            "A String",
                          ],
                        },
                        "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                            # computed asweight / (sum of all weightedBackendService weights in routeAction).
                            #
                            # The selection of a backend service is determined only for new traffic.
                            # Once a user's request has been directed to a backend service,
                            # subsequent requests are sent to the same backend service as
                            # determined by the backend service's session affinity policy.
                            # Don't configure session affinity if you're using weighted traffic
                            # splitting. If you do, the weighted traffic splitting configuration takes
                            # precedence.
                            #
                            # The value must be from 0 to 1000.
                      },
                    ],
                  },
                  "service": "A String", # The full or partial URL of the backend service resource to which traffic
                      # is directed if this rule is matched. If routeAction is
                      # also specified, advanced routing actions, such as URL rewrites,
                      # take effect before sending the request to the backend.
                      #
                      #
                      # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                      # specified by urlRedirect.
                      #
                      #
                      # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                      #
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                        # was supplied in the request.
                        #
                        # The value must be from 1 to 255
                        # characters.
                    "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                        # set to HTTPS.
                        # If set to false, the URL scheme of the redirected request
                        # remains the same as that of the request.
                        #
                        # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                        #
                        # The default is set to false.
                    "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                        # that was supplied in the request.
                        #
                        # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                        # supplied, the path of the original request is used for the redirect.
                        #
                        # The value must be from 1 to 1024 characters.
                    "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                        # the HttpRouteRuleMatch, retaining the remaining portion
                        # of the URL before redirecting the request.
                        #
                        # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                        # supplied, the path of the original request is used for the redirect.
                        #
                        # The value must be from 1 to 1024 characters.
                    "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                        #
                        # Supported values are:
                        #
                        #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                        #    to 301.
                        #    - FOUND, which corresponds to 302.
                        #    - SEE_OTHER which corresponds to 303.
                        #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                        #    method is retained.
                        #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                        #    method is retained.
                    "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                        # URL is
                        # removed before redirecting the request. If set to false, the
                        # query portion of the original URL is retained.
                        #
                        # The default is set to false.
                  },
                },
              ],
            },
          ],
          "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
              # This field is not applicable to global URL maps.
              # You must specify this field as part of the HTTP request URL. It is
              # not settable as a field in the request body.
          "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
          "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
            "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
              "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
              "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
            },
          },
          "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
              # maximum of 100 tests per UrlMap.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
            { # Message for the expected URL mappings.
              "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
                  # routing rules that involve traffic splitting.
              "description": "A String", # Description of this test case.
              "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
                  # containing the scheme, host, path and query parameters.
                  #
                  # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
                  # the load balancer to backends. For rules with urlRewrite,
                  # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
                  #
                  # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
                  # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
                  # If urlRedirect specifies strip_query, the test
                  # passes only if expectedOutputUrl does not contain any query
                  # parameters.
                  #
                  # expectedOutputUrl is optional whenservice is specified.
              "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
                  # load balancer's redirect response.
                  #
                  # expectedRedirectResponseCode cannot be set whenservice is set.
              "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
                  # being tested.
                  # [Deprecated] This field is deprecated.
                  # Use expected_output_url instead.
              "headers": [ # HTTP headers for this request. If headers contains
                  # a host header, then host must also match the header value.
                { # HTTP headers used in UrlMapTests.
                  "name": "A String", # Header name.
                  "value": "A String", # Header value.
                },
              ],
              "host": "A String", # Host portion of the URL. If headers contains a host header,
                  # then host must also match the header value.
              "path": "A String", # Path portion of the URL.
              "service": "A String", # Expected BackendService or BackendBucket resource
                  # the given URL should be mapped to.
                  #
                  # The service field cannot
                  # be set if expectedRedirectResponseCode is set.
            },
          ],
        },
      ],
      "kind": "compute#urlMapList", # Output only. Type of resource.
      "nextPageToken": "A String", # [Output Only] This token allows you to get the next page of results for
          # list requests. If the number of results is larger thanmaxResults, use the nextPageToken as a value for
          # the query parameter pageToken in the next list request.
          # Subsequent list requests will have their own nextPageToken to
          # continue paging through the results.
      "selfLink": "A String", # Output only. [Output Only] Server-defined URL for this resource.
      "warning": { # [Output Only] Informational warning message.
        "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
            # Engine returns NO_RESULTS_ON_PAGE if there
            # are no results in the response.
        "data": [ # [Output Only] Metadata about this warning in key:
            # value format. For example:
            #
            # "data": [
            #   {
            #    "key": "scope",
            #    "value": "zones/us-east1-d"
            #   }
          {
            "key": "A String", # [Output Only] A key that provides more detail on the warning being
                # returned. For example, for warnings where there are no results in a list
                # request for a particular zone, this key might be scope and
                # the key value might be the zone name. Other examples might be a key
                # indicating a deprecated resource and a suggested replacement, or a
                # warning about invalid network settings (for example, if an instance
                # attempts to perform IP forwarding but is not enabled for IP forwarding).
            "value": "A String", # [Output Only] A warning data value corresponding to the key.
          },
        ],
        "message": "A String", # [Output Only] A human-readable description of the warning code.
      },
    }

`list_next()`

    Retrieves the next page of results.

            Args:
              previous_request: The request for the previous page. (required)
              previous_response: The response from the request for the previous page. (required)

            Returns:
              A request object that you can call 'execute()' on to request the next
              page. Returns None if there are no more items in the collection.

`patch(project, urlMap, body=None, requestId=None, x__xgafv=None)`

    Patches the specified UrlMap resource with the data included in the
    request. This method supportsPATCH
    semantics and uses theJSON merge
    patch format and processing rules.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to patch. (required)
      body: object, The request body.
        The object takes the form of:

    { # Represents a URL Map resource.
        #
        # Compute Engine has two URL Map resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
        # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
        #
        # A URL map resource is a component of certain types of cloud load balancers
        # and Traffic Director:
        #
        # * urlMaps are used by global external Application Load
        # Balancers, classic Application Load Balancers, and cross-region internal
        # Application Load Balancers.
        # * regionUrlMaps are used by internal Application Load Balancers,
        # regional external Application Load Balancers and regional internal
        # Application Load Balancers.
        #
        # For a list of supported URL map features by the load balancer type, see the
        # Load balancing features: Routing and traffic management table.
        #
        # For a list of supported URL map features for Traffic Director, see the
        # Traffic Director features: Routing and traffic management table.
        #
        # This resource defines mappings from hostnames and URL paths to either a
        # backend service or a backend bucket.
        #
        # To use the global urlMaps resource, the backend service must
        # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
        # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
        # information, read URL
        # Map Concepts.
      "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
          # text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
          # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
          #
          # This policy takes
          # effect at the load balancer level and applies only when no policy has been
          # defined for the error code at lower levels like PathMatcher, RouteRule and
          # PathRule within this UrlMap.
          #
          # For example, consider a UrlMap with the
          # following configuration:
          #
          #
          #      - defaultCustomErrorResponsePolicy containing policies for
          #      responding to 5xx and 4xx errors
          #      - A PathMatcher configured for *.example.com has
          #      defaultCustomErrorResponsePolicy for 4xx.
          #
          # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
          # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
          # a request that does not match any host in *.example.com such
          # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
          # takes effect.
          #
          # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
          # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
          # a retry, if load balancer is successful in reaching the
          # service, the defaultCustomErrorResponsePolicy is ignored and
          # the response from the service is returned to the client.
          #
          # defaultCustomErrorResponsePolicy is supported only for
          # global external Application Load Balancers.
          # backend service or backend bucket responds with an error.
        "errorResponseRules": [ # Specifies rules for returning error responses.
            #
            # In a given policy, if you specify rules for both a range of error codes
            # as well as rules for specific error codes then rules with specific error
            # codes have a higher priority. For example, assume that you configure a rule
            # for 401 (Un-authorized) code, and another for all 4 series
            # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
            # However if the backend service returns a 403, the rule for4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along
              # with the custom error content and the response code returned by the backend
              # service.
            "matchResponseCodes": [ # Valid values include:
                #
                #
                #      - A number between 400 and 599: For example
                #      401 or 503, in which case the load balancer
                #      applies the policy if the error code exactly matches this value.
                #      - 5xx: Load Balancer will apply the policy if the
                #      backend service responds with any response code in the range of
                #      500 to 599.
                #    - 4xx: Load
                #      Balancer will apply the policy if the backend service responds with any
                #      response code in the range of 400 to
                #      499.
                #
                # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                # error content. If overrideResponseCode is not supplied, the
                # same response code returned by the original backend bucket or backend
                # service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                #
                # path must start
                # with a leading slash. path cannot have trailing slashes.
                #
                # If the file is not available in backendBucket  or the
                # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                #
                # The value must
                # be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that
            # contains the custom error content. Examples are:
            #
            #
            #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - global/backendBuckets/myBackendBucket
            #
            # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
            # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
            #
            # If load balancer cannot reach
            # the backendBucket, a simple Not Found Error will
            # be returned, with the original response code (oroverrideResponseCode if configured).
            #
            # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the
          # hostRules match. The load balancer performs advanced routing
          # actions, such as URL rewrites and header transformations, before forwarding
          # the request to the selected backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          #  URL maps for classic Application Load Balancers only support
          # the urlRewrite action within defaultRouteAction.
          #
          #
          # defaultRouteAction has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
        "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
            # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
            # property must be specified. This policy cannot be specified if any target
            # backend has Identity-Aware Proxy enabled.
          "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
              # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
              # header names can be specified. The cache is bypassed for all `cacheMode`
              # values.
            "A String",
          ],
          "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
              # on the backend type: for Backend Services, the complete request URI is
              # used; for Backend Buckets, the request URI is used without the protocol or
              # host, and only query parameters known to Cloud Storage are included.
              # Policy defined on Route Action.
            "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                # parameters will be included. Either specify `excludedQueryParameters`
                # or `includedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
              "A String",
            ],
            "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # host is never included in a Backend Bucket's cache key. Attempting to set
                # it on a route that points exclusively to Backend Buckets will result in a
                # configuration error.
            "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # protocol is never included in a Backend Bucket's cache key. Attempting to
                # set on a route that points exclusively to Backend Buckets will result in
                # a configuration error.
            "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                # `includedQueryParameters` and `excludedQueryParameters`. If neither
                # is set, the entire query string will be included. If false, the query
                # string will be excluded from the cache key entirely.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
            "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                # The name=value pair will be used in the cache key Cloud CDN generates.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket.
                # Attempting to set it on a route that points exclusively to Backend
                # Buckets will result in a configuration error. Up to 5 cookie names can be
                # specified.
              "A String",
            ],
            "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
              "A String",
            ],
            "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                # parameters will be excluded. Either specify `includedQueryParameters`
                # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
              "A String",
            ],
          },
          "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
              # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
          "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
              # content. This is used to clamp the max-age (or Expires) value sent to the
              # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
              # is used for the response max-age directive, along with a "public"
              # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
              # clamps the max-age from the origin (if specified), or else sets the
              # response max-age directive to the lesser of the `clientTtl` and
              # `defaultTtl`, and also ensures a "public" cache-control directive is
              # present. The maximum allowed value is 31,622,400s (1 year). If not
              # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
              # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
              # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
              # "always revalidate". The value of `defaultTtl` cannot be set to a value
              # greater than that of `maxTtl`. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
              # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
              # accessed objects may be evicted from the cache before the defined TTL. If
              # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
              # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
              # attempt to set a max-age or s-maxage higher than this, or an Expires header
              # more than `maxTtl` seconds in the future will be capped at the value of
              # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
              # Headers sent to the client will not be modified. Setting a TTL of "0" means
              # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
              # Infrequently accessed objects may be evicted from the cache before the
              # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
              # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
              # mode.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
              # to apply fine-grained caching for common errors or redirects.
              # This can reduce the load on your origin and improve end-user
              # experience by reducing response latency.
              # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
              # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
              # the specified response code that lack any Cache-Control, Expires, or
              # Pragma: no-cache directives. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, negative caching applies to all responses
              # with the specified response code, and overrides any caching headers. By
              # default, Cloud CDN applies the following TTLs to these HTTP status codes:
              #
              # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
              # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
              # * 405 (Method Not Found), 501 (Not Implemented): 60s
              #
              # These defaults can be overridden in `negativeCachingPolicy`.
              # If not specified, Cloud CDN applies negative caching by default.
          "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
              # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
              # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
              # CDN's default cache TTLs. Note that when specifying an explicit
              # `negativeCachingPolicy`, you should take care to specify a cache TTL for
              # all response codes that you wish to cache. Cloud CDN will not apply any
              # default negative caching when a policy exists.
            { # Specify CDN TTLs for response error codes.
              "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                  # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                  # specified as values, and you cannot specify a status code more than
                  # once.
              "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                  # corresponding status code.
                  # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                  # objects may be evicted from the cache before the defined TTL.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
          ],
          "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
              # requests into a small number of requests to the origin. If not specified,
              # Cloud CDN applies request coalescing by default.
          "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
              # content with the origin, or when an error is encountered when refreshing
              # the cache.
              # This setting defines the default "max-stale" duration for any cached
              # responses that do not specify a max-stale directive. Stale responses that
              # exceed the TTL configured here will not be served. The default limit
              # (max-stale) is 86400s (1 day), which will allow stale content to be
              # served up to this limit beyond the max-age (or s-maxage) of a cached
              # response.
              # The maximum allowed value is 604800 (1 week).
              # Set this to zero (0) to disable serve-while-stale.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
        },
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
            #
            # Not supported when the URL map is bound to a target gRPC proxy.
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true
              # indicates that
              # the actual request can include user credentials. This field translates to
              # the Access-Control-Allow-Credentials header.
              #
              # Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
              # header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
              # header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
              # more information, see regular expression syntax.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
              #
              # Regular expressions can only be used when the loadBalancingScheme is
              # set to INTERNAL_SELF_MANAGED.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, disables the CORS policy.
              # The default value is false, which indicates that the CORS
              # policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
              # header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in
              # seconds. This field translates to the Access-Control-Max-Age
              # header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by a load balancer on a percentage of requests before sending
            # those requests to the backend service. Similarly requests from clients can
            # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
            # that are configured with a fault_injection_policy if:
            # 1. The traffic is generated by fault injection AND
            # 2. The fault injection is not a delay fault injection.
            # Fault injection is not supported with the classic Application Load Balancer
            # . To see which load balancers support fault injection,
            # see Load
            # balancing: Routing and traffic management features.
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by the load balancer on a percentage of requests before sending
            # those request to the backend service. Similarly requests from clients can be
            # aborted by the load balancer for a percentage of requests.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
              # injection.
            "httpStatus": 42, # The HTTP status code used to abort the request.
                #
                # The value must be from 200 to 599 inclusive.
                #
                # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                # according to this
                # mapping table. HTTP status 200 is mapped to gRPC status
                # UNKNOWN. Injecting an OK status is currently not supported by
                # Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                # that is aborted as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
              # injection, before being sent to a backend service.
              # request to the backend service as part of fault injection.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                # which a delay is introduced as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
            # Global EXTERNAL_MANAGED load balancer schemes.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route
            # dynamically processes and delivers images from the network edge.
            # Image Optimization is only available for Global External Application Load
            # Balancers.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route.
          "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
            # Unlike the timeout field where the timeout duration starts
            # from the time the request has been fully processed (known as*end-of-stream*),
            # the duration in this field is computed from the beginning of the stream
            # until the response has been processed, including all retries. A
            # stream that does not complete in this duration is closed.
            #
            # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
            # with the route.
            #
            # This field is only allowed if the Url map is used with backend services
            # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
            # are shadowed to a separate mirrored backend service. The load balancer does
            # not wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host / authority header is suffixed with-shadow.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # are shadowed to a separate mirrored backend service. The load balancer
            # doesn't wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host or authority header is suffixed with-shadow.
          "backendService": "A String", # The full or partial URL to the BackendService resource being
              # mirrored to.
              #
              # The backend service configured for a mirroring
              # policy must reference backends that are of the same type as the original
              # backend service matched in the URL map.
              #
              # Serverless NEG backends are not currently supported as a mirrored
              # backend service.
          "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
              # If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
              #
              # If not specified, will use the timeout set in theHttpRouteAction field.
              # If timeout in the HttpRouteAction field is not set, this field
              # uses the largest timeout
              # among all backend services associated with the route.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has the validateForProxyless field set to true.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
              # values are:
              #
              #    - 5xx: retry is attempted if the instance or endpoint
              #    responds with any 5xx response code, or if the instance or
              #    endpoint does not respond at all. For example, disconnects, reset, read
              #    timeout, connection failure, and refused streams.
              #    - gateway-error: Similar to 5xx, but only
              #    applies to response codes 502, 503 or504.
              #    - connect-failure: a retry is attempted on failures
              #    connecting to the instance or endpoint. For example, connection
              #    timeouts.
              #    - retriable-4xx: a retry is attempted if the instance
              #    or endpoint responds with a 4xx response code.
              #    The only error that you can retry is error code 409.
              #    - refused-stream: a retry is attempted if the instance
              #    or endpoint resets the stream with a REFUSED_STREAM error
              #    code. This reset type indicates that it is safe to retry.
              #    - cancelled: a retry is attempted if the gRPC status
              #    code in the response header is set to cancelled.
              #    - deadline-exceeded: a retry is attempted if the gRPC
              #    status code in the response header is set todeadline-exceeded.
              #    - internal: a retry is attempted if the gRPC
              #    status code in the response header is set tointernal.
              #    - resource-exhausted: a retry is attempted if the gRPC
              #    status code in the response header is set toresource-exhausted.
              #    - unavailable: a retry is attempted if the gRPC
              #    status code in the response header is set tounavailable.
              #
              # Only the following codes are supported when the URL map is bound to
              # target gRPC proxy that has validateForProxyless field set to true.
              #
              #    - cancelled
              #    - deadline-exceeded
              #    - internal
              #    - resource-exhausted
              #    - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
            # time the request has been fully processed (known as *end-of-stream*)
            # up until the response has been processed. Timeout includes
            # all retries.
            #
            # If not specified, this field uses the largest timeout among all backend
            # services associated with the route.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has validateForProxyless field set to true.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
            # to the matched service.
            #
            #  urlRewrite is the only action supported in UrlMaps
            # for classic Application Load Balancers.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # backend service.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
              # host header is replaced with contents of hostRewrite.
              #
              # The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
              # matching portion of the request's path is replaced bypathPrefixRewrite.
              #
              # The value must be from 1 to 1024 characters.
          "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
              # header) using the HTTP template syntax.
              #
              # A corresponding
              # path_template_match must be specified. Any template variables must exist in
              # the path_template_match field.
              #
              #
              #       - -At least one variable must be specified in the path_template_match
              #       field
              #    - You can omit variables from the rewritten URL
              #       - The * and ** operators cannot be matched
              #       unless they have a corresponding variable name - e.g.
              #       {format=*} or {var=**}.
              #
              # For example, a path_template_match of /static/{format=**}
              # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
              # rewrite, so that /{country}/{format}/{suffix=**} can be
              # rewritten as /content/{format}/{country}/{suffix}.
              #
              # At least
              # one non-empty routeRules[].matchRules[].path_template_match is
              # required.
              #
              # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
          "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
            "pathPattern": "A String", # The regular expression used to match against the URL path.
                # It uses RE2 syntax with the following constraints:
                #
                #
                #      - Any single character operators
                #      - Groups are allowed to have only submatch operator inside
                #      - Groups are allowed only without any char repetition, e.g.
                #      .*
                #      - Any char repetition, e.g. .*, is
                #      only allowed to be used in a single regex together with:
                #
                #
                #             - Empty string operators
                #             - Other repetitions
                #             - Ranges
                #             - Repetitions of ranges
                #
                #
                #      - Ranges are only allowed to have:
                #
                #
                #             - Character range
                #             - Digits range
                #             - Symbols listed in characters allowed for ranges
            "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                # the path.
          },
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
            # occurs. The weights determine the fraction of traffic that flows to
            # their corresponding backend service. If all traffic needs to
            # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
            #
            # After a backend service is identified and before forwarding
            # the request to
            # the backend service, advanced routing actions such as URL rewrites and
            # header transformations are applied depending on additional settings
            # specified in this HttpRouteAction.
          { # In contrast to a single BackendService in
              # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
              # multiple backend services. The volume of traffic for each
              # backend service is proportional to the weight specified
              # in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService
                # resource. Before
                # forwarding the request to backendService, the load balancer
                # applies any relevant headerActions specified as part of thisbackendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                # effect for the selected backendService.
                #
                # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                #
                # headerAction is not supported for load balancers that have
                # their loadBalancingScheme set to EXTERNAL.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # the request is passed along to the selected backendService.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                  # client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                # computed asweight / (sum of all weightedBackendService weights in routeAction).
                #
                # The selection of a backend service is determined only for new traffic.
                # Once a user's request has been directed to a backend service,
                # subsequent requests are sent to the same backend service as
                # determined by the backend service's session affinity policy.
                # Don't configure session affinity if you're using weighted traffic
                # splitting. If you do, the weighted traffic splitting configuration takes
                # precedence.
                #
                # The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to
          # which traffic is directed if none of the hostRules match.
          # If defaultRouteAction is also specified, advanced
          # routing actions, such as URL rewrites, take effect before sending the
          # request to the backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # defaultService has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
          # is redirected to a URL specified by defaultUrlRedirect.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
            # was supplied in the request.
            #
            # The value must be from 1 to 255
            # characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
            # set to HTTPS.
            # If set to false, the URL scheme of the redirected request
            # remains the same as that of the request.
            #
            # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
            #
            # The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
            # that was supplied in the request.
            #
            # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
            # the HttpRouteRuleMatch, retaining the remaining portion
            # of the URL before redirecting the request.
            #
            # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
            #
            # Supported values are:
            #
            #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
            #    to 301.
            #    - FOUND, which corresponds to 302.
            #    - SEE_OTHER which corresponds to 303.
            #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
            #    method is retained.
            #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
            #    method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original
            # URL is
            # removed before redirecting the request. If set to false, the
            # query portion of the original URL is retained.
            #
            # The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you
          # create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
          # This field is used in optimistic locking. This field is ignored when
          # inserting a UrlMap. An up-to-date fingerprint must be provided
          # in order to update the UrlMap, otherwise the request will
          # fail with error 412 conditionNotMet.
          #
          # To see the latest fingerprint, make a get() request to
          # retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
          # for the selected backendService.
          #
          # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
          #
          # headerAction is not supported for load balancers
          # that have
          # their loadBalancingScheme set to EXTERNAL.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
          # the request is passed along to the selected backendService.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
            # client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps
            # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with
              # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
              # that case, * must be the first character, and if followed by
              # anything, the immediate following character must be either -
              # or ..
              #
              # * based matching is not supported when the URL map is bound
              # to a target gRPC proxy that has the validateForProxyless field
              # set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
              # of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
          # defined by the server.
      "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
          # url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created.
          # The name must be 1-63 characters long, and comply withRFC1035.
          # Specifically, the name must be 1-63 characters long and match the regular
          # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
          # character must be a lowercase letter, and all following characters must
          # be a dash, lowercase letter, or digit, except the last character, which
          # cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService
            # from the longest-matched rule will serve the URL. If no rule was matched, the
            # default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
              # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
              #
              # This policy takes
              # effect at the PathMatcher level and applies only when no
              # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
              # in defaultCustomErrorResponsePolicy, then a policy defined for
              # the error code in UrlMap.defaultCustomErrorResponsePolicy
              # takes effect.
              #
              # For example, consider a UrlMap with the following
              # configuration:
              #
              #
              #      - UrlMap.defaultCustomErrorResponsePolicy is configured
              #      with policies for 5xx and 4xx errors
              #      - A RouteRule for /coming_soon/ is configured for the
              #      error code 404.
              #
              # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
              # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
              # the policy in RouteRule.customErrorResponsePolicy takes
              # effect. If any of the requests in this example encounter a 500
              # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
              #
              # When
              # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
              # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
              # a retry, if load balancer is successful in reaching the
              # service, the defaultCustomErrorResponsePolicy is ignored and
              # the response from the service is returned to the client.
              #
              # defaultCustomErrorResponsePolicy is supported only for
              # global external Application Load Balancers.
              # backend service or backend bucket responds with an error.
            "errorResponseRules": [ # Specifies rules for returning error responses.
                #
                # In a given policy, if you specify rules for both a range of error codes
                # as well as rules for specific error codes then rules with specific error
                # codes have a higher priority. For example, assume that you configure a rule
                # for 401 (Un-authorized) code, and another for all 4 series
                # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                # However if the backend service returns a 403, the rule for4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along
                  # with the custom error content and the response code returned by the backend
                  # service.
                "matchResponseCodes": [ # Valid values include:
                    #
                    #
                    #      - A number between 400 and 599: For example
                    #      401 or 503, in which case the load balancer
                    #      applies the policy if the error code exactly matches this value.
                    #      - 5xx: Load Balancer will apply the policy if the
                    #      backend service responds with any response code in the range of
                    #      500 to 599.
                    #    - 4xx: Load
                    #      Balancer will apply the policy if the backend service responds with any
                    #      response code in the range of 400 to
                    #      499.
                    #
                    # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                    # error content. If overrideResponseCode is not supplied, the
                    # same response code returned by the original backend bucket or backend
                    # service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                    #
                    # path must start
                    # with a leading slash. path cannot have trailing slashes.
                    #
                    # If the file is not available in backendBucket  or the
                    # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                    #
                    # The value must
                    # be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                # contains the custom error content. Examples are:
                #
                #
                #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - global/backendBuckets/myBackendBucket
                #
                # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                #
                # If load balancer cannot reach
                # the backendBucket, a simple Not Found Error will
                # be returned, with the original response code (oroverrideResponseCode if configured).
                #
                # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the
              # pathRules or routeRules match. The load balancer
              # performs advanced routing actions, such as URL rewrites and
              # header transformations, before forwarding the request to the
              # selected backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # URL maps for classic Application Load Balancers only support
              # the urlRewrite action within a path matcher'sdefaultRouteAction.
            "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                # property must be specified. This policy cannot be specified if any target
                # backend has Identity-Aware Proxy enabled.
              "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                  # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                  # header names can be specified. The cache is bypassed for all `cacheMode`
                  # values.
                "A String",
              ],
              "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                  # on the backend type: for Backend Services, the complete request URI is
                  # used; for Backend Buckets, the request URI is used without the protocol or
                  # host, and only query parameters known to Cloud Storage are included.
                  # Policy defined on Route Action.
                "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                    # parameters will be included. Either specify `excludedQueryParameters`
                    # or `includedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                  "A String",
                ],
                "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # host is never included in a Backend Bucket's cache key. Attempting to set
                    # it on a route that points exclusively to Backend Buckets will result in a
                    # configuration error.
                "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # protocol is never included in a Backend Bucket's cache key. Attempting to
                    # set on a route that points exclusively to Backend Buckets will result in
                    # a configuration error.
                "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                    # `includedQueryParameters` and `excludedQueryParameters`. If neither
                    # is set, the entire query string will be included. If false, the query
                    # string will be excluded from the cache key entirely.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                    # The name=value pair will be used in the cache key Cloud CDN generates.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket.
                    # Attempting to set it on a route that points exclusively to Backend
                    # Buckets will result in a configuration error. Up to 5 cookie names can be
                    # specified.
                  "A String",
                ],
                "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                  "A String",
                ],
                "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                    # parameters will be excluded. Either specify `includedQueryParameters`
                    # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                  "A String",
                ],
              },
              "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                  # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
              "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                  # content. This is used to clamp the max-age (or Expires) value sent to the
                  # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                  # is used for the response max-age directive, along with a "public"
                  # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                  # clamps the max-age from the origin (if specified), or else sets the
                  # response max-age directive to the lesser of the `clientTtl` and
                  # `defaultTtl`, and also ensures a "public" cache-control directive is
                  # present. The maximum allowed value is 31,622,400s (1 year). If not
                  # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                  # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                  # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                  # "always revalidate". The value of `defaultTtl` cannot be set to a value
                  # greater than that of `maxTtl`. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                  # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                  # accessed objects may be evicted from the cache before the defined TTL. If
                  # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                  # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                  # attempt to set a max-age or s-maxage higher than this, or an Expires header
                  # more than `maxTtl` seconds in the future will be capped at the value of
                  # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                  # Headers sent to the client will not be modified. Setting a TTL of "0" means
                  # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                  # Infrequently accessed objects may be evicted from the cache before the
                  # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                  # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                  # mode.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                  # to apply fine-grained caching for common errors or redirects.
                  # This can reduce the load on your origin and improve end-user
                  # experience by reducing response latency.
                  # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                  # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                  # the specified response code that lack any Cache-Control, Expires, or
                  # Pragma: no-cache directives. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, negative caching applies to all responses
                  # with the specified response code, and overrides any caching headers. By
                  # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                  #
                  # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                  # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                  # * 405 (Method Not Found), 501 (Not Implemented): 60s
                  #
                  # These defaults can be overridden in `negativeCachingPolicy`.
                  # If not specified, Cloud CDN applies negative caching by default.
              "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                  # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                  # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                  # CDN's default cache TTLs. Note that when specifying an explicit
                  # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                  # all response codes that you wish to cache. Cloud CDN will not apply any
                  # default negative caching when a policy exists.
                { # Specify CDN TTLs for response error codes.
                  "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                      # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                      # specified as values, and you cannot specify a status code more than
                      # once.
                  "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                      # corresponding status code.
                      # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                      # objects may be evicted from the cache before the defined TTL.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
              ],
              "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                  # requests into a small number of requests to the origin. If not specified,
                  # Cloud CDN applies request coalescing by default.
              "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                  # content with the origin, or when an error is encountered when refreshing
                  # the cache.
                  # This setting defines the default "max-stale" duration for any cached
                  # responses that do not specify a max-stale directive. Stale responses that
                  # exceed the TTL configured here will not be served. The default limit
                  # (max-stale) is 86400s (1 day), which will allow stale content to be
                  # served up to this limit beyond the max-age (or s-maxage) of a cached
                  # response.
                  # The maximum allowed value is 604800 (1 week).
                  # Set this to zero (0) to disable serve-while-stale.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
                #
                # Not supported when the URL map is bound to a target gRPC proxy.
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true
                  # indicates that
                  # the actual request can include user credentials. This field translates to
                  # the Access-Control-Allow-Credentials header.
                  #
                  # Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                  # header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                  # header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                  # more information, see regular expression syntax.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                  #
                  # Regular expressions can only be used when the loadBalancingScheme is
                  # set to INTERNAL_SELF_MANAGED.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, disables the CORS policy.
                  # The default value is false, which indicates that the CORS
                  # policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                  # header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                  # seconds. This field translates to the Access-Control-Max-Age
                  # header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by a load balancer on a percentage of requests before sending
                # those requests to the backend service. Similarly requests from clients can
                # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                # that are configured with a fault_injection_policy if:
                # 1. The traffic is generated by fault injection AND
                # 2. The fault injection is not a delay fault injection.
                # Fault injection is not supported with the classic Application Load Balancer
                # . To see which load balancers support fault injection,
                # see Load
                # balancing: Routing and traffic management features.
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by the load balancer on a percentage of requests before sending
                # those request to the backend service. Similarly requests from clients can be
                # aborted by the load balancer for a percentage of requests.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                  # injection.
                "httpStatus": 42, # The HTTP status code used to abort the request.
                    #
                    # The value must be from 200 to 599 inclusive.
                    #
                    # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                    # according to this
                    # mapping table. HTTP status 200 is mapped to gRPC status
                    # UNKNOWN. Injecting an OK status is currently not supported by
                    # Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                    # that is aborted as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                  # injection, before being sent to a backend service.
                  # request to the backend service as part of fault injection.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                    # which a delay is introduced as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                # Global EXTERNAL_MANAGED load balancer schemes.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route
                # dynamically processes and delivers images from the network edge.
                # Image Optimization is only available for Global External Application Load
                # Balancers.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route.
              "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                # Unlike the timeout field where the timeout duration starts
                # from the time the request has been fully processed (known as*end-of-stream*),
                # the duration in this field is computed from the beginning of the stream
                # until the response has been processed, including all retries. A
                # stream that does not complete in this duration is closed.
                #
                # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                # with the route.
                #
                # This field is only allowed if the Url map is used with backend services
                # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                # are shadowed to a separate mirrored backend service. The load balancer does
                # not wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host / authority header is suffixed with-shadow.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # are shadowed to a separate mirrored backend service. The load balancer
                # doesn't wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host or authority header is suffixed with-shadow.
              "backendService": "A String", # The full or partial URL to the BackendService resource being
                  # mirrored to.
                  #
                  # The backend service configured for a mirroring
                  # policy must reference backends that are of the same type as the original
                  # backend service matched in the URL map.
                  #
                  # Serverless NEG backends are not currently supported as a mirrored
                  # backend service.
              "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                  # If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                  #
                  # If not specified, will use the timeout set in theHttpRouteAction field.
                  # If timeout in the HttpRouteAction field is not set, this field
                  # uses the largest timeout
                  # among all backend services associated with the route.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                  # values are:
                  #
                  #    - 5xx: retry is attempted if the instance or endpoint
                  #    responds with any 5xx response code, or if the instance or
                  #    endpoint does not respond at all. For example, disconnects, reset, read
                  #    timeout, connection failure, and refused streams.
                  #    - gateway-error: Similar to 5xx, but only
                  #    applies to response codes 502, 503 or504.
                  #    - connect-failure: a retry is attempted on failures
                  #    connecting to the instance or endpoint. For example, connection
                  #    timeouts.
                  #    - retriable-4xx: a retry is attempted if the instance
                  #    or endpoint responds with a 4xx response code.
                  #    The only error that you can retry is error code 409.
                  #    - refused-stream: a retry is attempted if the instance
                  #    or endpoint resets the stream with a REFUSED_STREAM error
                  #    code. This reset type indicates that it is safe to retry.
                  #    - cancelled: a retry is attempted if the gRPC status
                  #    code in the response header is set to cancelled.
                  #    - deadline-exceeded: a retry is attempted if the gRPC
                  #    status code in the response header is set todeadline-exceeded.
                  #    - internal: a retry is attempted if the gRPC
                  #    status code in the response header is set tointernal.
                  #    - resource-exhausted: a retry is attempted if the gRPC
                  #    status code in the response header is set toresource-exhausted.
                  #    - unavailable: a retry is attempted if the gRPC
                  #    status code in the response header is set tounavailable.
                  #
                  # Only the following codes are supported when the URL map is bound to
                  # target gRPC proxy that has validateForProxyless field set to true.
                  #
                  #    - cancelled
                  #    - deadline-exceeded
                  #    - internal
                  #    - resource-exhausted
                  #    - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                # time the request has been fully processed (known as *end-of-stream*)
                # up until the response has been processed. Timeout includes
                # all retries.
                #
                # If not specified, this field uses the largest timeout among all backend
                # services associated with the route.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                # to the matched service.
                #
                #  urlRewrite is the only action supported in UrlMaps
                # for classic Application Load Balancers.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # backend service.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                  # host header is replaced with contents of hostRewrite.
                  #
                  # The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                  # matching portion of the request's path is replaced bypathPrefixRewrite.
                  #
                  # The value must be from 1 to 1024 characters.
              "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                  # header) using the HTTP template syntax.
                  #
                  # A corresponding
                  # path_template_match must be specified. Any template variables must exist in
                  # the path_template_match field.
                  #
                  #
                  #       - -At least one variable must be specified in the path_template_match
                  #       field
                  #    - You can omit variables from the rewritten URL
                  #       - The * and ** operators cannot be matched
                  #       unless they have a corresponding variable name - e.g.
                  #       {format=*} or {var=**}.
                  #
                  # For example, a path_template_match of /static/{format=**}
                  # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                  # rewrite, so that /{country}/{format}/{suffix=**} can be
                  # rewritten as /content/{format}/{country}/{suffix}.
                  #
                  # At least
                  # one non-empty routeRules[].matchRules[].path_template_match is
                  # required.
                  #
                  # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
              "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                "pathPattern": "A String", # The regular expression used to match against the URL path.
                    # It uses RE2 syntax with the following constraints:
                    #
                    #
                    #      - Any single character operators
                    #      - Groups are allowed to have only submatch operator inside
                    #      - Groups are allowed only without any char repetition, e.g.
                    #      .*
                    #      - Any char repetition, e.g. .*, is
                    #      only allowed to be used in a single regex together with:
                    #
                    #
                    #             - Empty string operators
                    #             - Other repetitions
                    #             - Ranges
                    #             - Repetitions of ranges
                    #
                    #
                    #      - Ranges are only allowed to have:
                    #
                    #
                    #             - Character range
                    #             - Digits range
                    #             - Symbols listed in characters allowed for ranges
                "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                    # the path.
              },
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                # occurs. The weights determine the fraction of traffic that flows to
                # their corresponding backend service. If all traffic needs to
                # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                #
                # After a backend service is identified and before forwarding
                # the request to
                # the backend service, advanced routing actions such as URL rewrites and
                # header transformations are applied depending on additional settings
                # specified in this HttpRouteAction.
              { # In contrast to a single BackendService in
                  # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                  # multiple backend services. The volume of traffic for each
                  # backend service is proportional to the weight specified
                  # in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService
                    # resource. Before
                    # forwarding the request to backendService, the load balancer
                    # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                    # effect for the selected backendService.
                    #
                    # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                    #
                    # headerAction is not supported for load balancers that have
                    # their loadBalancingScheme set to EXTERNAL.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # the request is passed along to the selected backendService.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                      # client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                    # computed asweight / (sum of all weightedBackendService weights in routeAction).
                    #
                    # The selection of a backend service is determined only for new traffic.
                    # Once a user's request has been directed to a backend service,
                    # subsequent requests are sent to the same backend service as
                    # determined by the backend service's session affinity policy.
                    # Don't configure session affinity if you're using weighted traffic
                    # splitting. If you do, the weighted traffic splitting configuration takes
                    # precedence.
                    #
                    # The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This
              # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
              # matched. For example, the
              # following are all valid URLs to a BackendService resource:
              #
              #
              #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
              #      - compute/v1/projects/project/global/backendServices/backendService
              #      - global/backendServices/backendService
              #
              #
              # If defaultRouteAction is also specified, advanced
              # routing actions, such as URL rewrites, take effect before sending the
              # request to the backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Authorization requires one or more of the following Google IAM permissions on the
              # specified resource default_service:
              #
              #
              #       - compute.backendBuckets.use
              #       - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
              # by defaultUrlRedirect.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                # was supplied in the request.
                #
                # The value must be from 1 to 255
                # characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                # set to HTTPS.
                # If set to false, the URL scheme of the redirected request
                # remains the same as that of the request.
                #
                # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                #
                # The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                # that was supplied in the request.
                #
                # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                # the HttpRouteRuleMatch, retaining the remaining portion
                # of the URL before redirecting the request.
                #
                # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                #
                # Supported values are:
                #
                #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                #    to 301.
                #    - FOUND, which corresponds to 302.
                #    - SEE_OTHER which corresponds to 303.
                #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                #    method is retained.
                #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                #    method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                # URL is
                # removed before redirecting the request. If set to false, the
                # query portion of the original URL is retained.
                #
                # The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
              # for the selected backend service.
              #
              # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
              #
              # HeaderAction is not supported for load balancers
              # that have
              # their loadBalancingScheme set to EXTERNAL.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
              # the request is passed along to the selected backendService.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                # client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules
              # when routing based on simple path matching is all that's required. A path
              # rule can only include a wildcard character (*) after a
              # forward slash character ("/").
              #
              # The order by which path rules are specified does not matter.
              # Matches are always done on the longest-path-first basis.
              #
              # For example: a pathRule with a path /a/b/c/* will match
              # before /a/b/* irrespective of the order in which those paths appear in this
              # list.
              #
              # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the PathRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A PathRule for /coming_soon/ is configured for the error
                  #      code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in PathRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with /
                  # and the only place a * is allowed is at the end following
                  # a /.  The string fed to the path matcher does not include
                  # any text after the first ? or #, and
                  # those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected
                  # backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a path rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
              # desired. routeRules are evaluated in order of priority, from
              # the lowest to highest number.
              #
              # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request
                # and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the RouteRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A RouteRule for /coming_soon/ is configured for the
                  #      error code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in RouteRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # When
                  # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                  # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                  # a retry, if load balancer is successful in reaching the
                  # service, the customErrorResponsePolicy is ignored and
                  # the response from the service is returned to the client.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule.
                  #
                  #
                  # The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                  # for the selected backendService.
                  #
                  # The headerAction value specified here is applied before the
                  # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                  #
                  # HeaderAction is not supported for load balancers
                  # that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterConfigs only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterMetadata only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                  # this routeRule when any of thematchRules are satisfied. However predicates within
                  # a given matchRule have AND semantics. All predicates
                  # within a matchRule must match for the request to
                  # match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching
                    # requests to an HttpRouteRule. All specified criteria must
                    # be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                      # that may be part of the original URL.
                      #
                      # fullPathMatch must be from 1 to 1024 characters.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                      # corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match.
                          #
                          # For matching against the HTTP request's authority, use a headerMatch
                          # with the header name ":authority".
                          #
                          # For matching a request's method, use the headerName ":method".
                          #
                          # When the URL map is bound to a target gRPC proxy that has
                          # the validateForProxyless field set to true, only
                          # non-binary
                          # user-specified custom metadata and the `content-type` header are supported.
                          # The following transport-level headers cannot be used in header matching
                          # rules:
                          # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                          # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                          # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                          # `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a
                          # match if the preceding match criteria are met. If set to true,
                          # the headerMatch is considered a match if the preceding
                          # match criteria are NOT met.
                          #
                          # The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The
                          # match takes place whether or not the request's header has a value.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                          # specified in rangeMatch. If the header does not contain an
                          # integer, number or is empty, the match fails.
                          #
                          # For example for a range [-5, 0]
                          #
                          #
                          #       - -3 will match.
                          #       - 0 will not match.
                          #       - 0.25 will not match.
                          #       - -3someString will not match.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # rangeMatch is not supported for load balancers
                          # that have loadBalancingScheme set to EXTERNAL.
                          # within the specified integer range.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                          # For more information about regular expression syntax, see Syntax.
                          #
                          # For matching against a port specified in the HTTP request, use a
                          # headerMatch with headerName set to PORT and a regular expression that
                          # satisfies the RFC2616 Host header's port specifier.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                      # matches are case sensitive.
                      #
                      # The default value is false.
                      #
                      # ignoreCase must not be used with regexMatch.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                      # configuration to a limited set of xDS
                      # compliant clients. In their xDS requests to the load balancer, xDS clients
                      # present node
                      # metadata. When there is a match, the relevant routing configuration
                      # is made available to those proxies.
                      #
                      # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                      # the metadata. If its filterMatchCriteria is set to
                      # MATCH_ALL, then all of its filterLabels must match with
                      # corresponding labels provided in the metadata. If multiple
                      # metadata filters are specified, all of them need to be
                      # satisfied in order to be considered a match.
                      #
                      # metadataFilters specified here is applied after those
                      # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                      #
                      # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing
                        # configuration to a limited set of load balancing proxies. Proxies and
                        # sidecars involved in load balancing would typically present metadata to the
                        # load balancers that need to match criteria specified here. If a match takes
                        # place, the relevant configuration is made available to those
                        # proxies.
                        #
                        # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                        # one of thefilterLabels must match the corresponding label provided in
                        # the metadata. If its filterMatchCriteria is set to
                        # MATCH_ALL, then all of its filterLabels must match with
                        # corresponding labels provided in the metadata.
                        #
                        # An example for using metadataFilters would be: if
                        # load balancing involves
                        # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided
                          # metadata based on filterMatchCriteria
                          #
                          # This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected
                            # to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label.
                              #
                              #  The name can have a maximum length of 1024 characters and must be at
                              # least 1 character long.
                          "value": "A String", # The value of the label must match the specified value.
                              #
                              # value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                          # within the list of filterLabels and contributes toward the
                          # overall metadataFilter match.
                          #
                          #  Supported values are:
                          #
                          #    - MATCH_ANY: at least one of the filterLabels
                          #    must have a matching label in the provided metadata.
                          #    - MATCH_ALL: all filterLabels must have
                          #    matching labels in the provided metadata.
                    },
                  ],
                  "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                      # the :path header after the query string is removed.
                      #
                      # A path template pattern can include variables and wildcards.
                      # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                      # matches a single path segment, and ** that matches zero or
                      # more path segments. The pattern must follow these rules:
                      #
                      #
                      #       - The value must be between 1 and 1024 characters.
                      #       - The pattern must start with a leading slash ("/").
                      #       - No more than 5 operators (variables or wildcards) may appear in
                      #       the pattern.
                      #
                      # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                      # set.
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                      # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                      #
                      # The value must be from 1 to 1024 characters.
                      #
                      # The * character inside a prefix match is
                      # treated as a literal character, not as a wildcard.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                      # used within a matchRule.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                      # match corresponding query parameters in the request.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter exactly matches the contents of exactMatch.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                          # the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                          # request contains the query parameter, irrespective of whether the
                          # parameter has a value or not.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter matches the regular expression specified byregexMatch. For
                          # more information about regular expression syntax, see Syntax.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                      # supplied with the original URL. For
                      # more information about regular expression syntax, see Syntax.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                      # (regional scope) or INTERNAL_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher,
                  # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                  # of priority, from the lowest to highest number. The priority of a
                  # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                  # that matches the request is applied.
                  #
                  #
                  # You cannot configure two or more routeRules with the same priority.
                  # Priority for each rule must be set to a number from 0 to 2147483647
                  # inclusive.
                  #
                  #
                  # Priority numbers can have gaps, which enable you to add or remove rules
                  # in the future without affecting the rest of the rules. For example, 1, 2,
                  # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                  # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                  # without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a route rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
          # This field is not applicable to global URL maps.
          # You must specify this field as part of the HTTP request URL. It is
          # not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
        "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
          "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
          "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
        },
      },
      "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
          # maximum of 100 tests per UrlMap.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
              # routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
              # containing the scheme, host, path and query parameters.
              #
              # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
              # the load balancer to backends. For rules with urlRewrite,
              # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
              #
              # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
              # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
              # If urlRedirect specifies strip_query, the test
              # passes only if expectedOutputUrl does not contain any query
              # parameters.
              #
              # expectedOutputUrl is optional whenservice is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
              # load balancer's redirect response.
              #
              # expectedRedirectResponseCode cannot be set whenservice is set.
          "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
              # being tested.
              # [Deprecated] This field is deprecated.
              # Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains
              # a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header,
              # then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource
              # the given URL should be mapped to.
              #
              # The service field cannot
              # be set if expectedRedirectResponseCode is set.
        },
      ],
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so
    that if you must retry your request, the server will know to ignore the
    request if it has already been completed.

    For example, consider a situation where you make an initial request and
    the request times out. If you make the request again with the same
    request ID, the server can check if original operation with the same
    request ID was received, and if so, will ignore the second request. This
    prevents clients from accidentally creating duplicate commitments.

    The request ID must be
    a valid UUID with the exception that zero UUID is not supported
    (00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource.
        #
        # Google Compute Engine has three Operation resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/globalOperations)
        # * [Regional](/compute/docs/reference/rest/alpha/regionOperations)
        # * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations)
        #
        # You can use an operation resource to manage asynchronous API requests.
        # For more information, readHandling
        # API responses.
        #
        # Operations can be global, regional or zonal.
        #
        #    - For global operations, use the `globalOperations`
        #    resource.
        #    - For regional operations, use the
        #    `regionOperations` resource.
        #    - For zonal operations, use
        #    the `zoneOperations` resource.
        #
        #
        #
        # For more information, read
        # Global, Regional, and Zonal Resources.
        #
        # Note that completed Operation resources have a limited
        # retention period.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request.
          # Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is
          # set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is inRFC3339
          # text format.
      "error": { # [Output Only] If errors are generated during processing of the operation,
          # this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this
            # operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error
                # details. There is a set of defined message types to use for providing
                # details.The syntax depends on the error code. For example,
                # QuotaExceededInfo will have details when the error code is
                # QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details.
                    #
                    # Example of an error when contacting the "pubsub.googleapis.com" API when it
                    # is not enabled:
                    #
                    #     { "reason": "API_DISABLED"
                    #       "domain": "googleapis.com"
                    #       "metadata": {
                    #         "resource": "projects/123",
                    #         "service": "pubsub.googleapis.com"
                    #       }
                    #     }
                    #
                    # This response indicates that the pubsub.googleapis.com API is not enabled.
                    #
                    # Example of an error that is returned when attempting to create a Spanner
                    # instance in a region that is out of stock:
                    #
                    #     { "reason": "STOCKOUT"
                    #       "domain": "spanner.googleapis.com",
                    #       "metadata": {
                    #         "availableRegions": "us-central1,us-east2"
                    #       }
                    #     }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain
                      # is typically the registered service name of the tool or product that
                      # generates the error. Example: "pubsub.googleapis.com". If the error is
                      # generated by some common infrastructure, the error domain must be a
                      # globally unique value that identifies the infrastructure. For Google API
                      # infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error.
                      #
                      # Keys must match a regular expression of `a-z+` but should
                      # ideally be lowerCamelCase. Also, they must be limited to 64 characters in
                      # length. When identifying the current value of an exceeded limit, the units
                      # should be contained in the key, not the value.  For example, rather than
                      # `{"instanceLimit": "100/request"}`, should be returned as,
                      # `{"instanceLimitPerRequest": "100"}`, if the client exceeds the number of
                      # instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the
                      # proximate cause of the error. Error reasons are unique within a particular
                      # domain of errors. This should be at most 63 characters and match a
                      # regular expression of `A-Z+[A-Z0-9]`, which represents
                      # UPPER_SNAKE_CASE.
                },
                "help": { # Provides links to documentation or for performing an out of band action.
                    #
                    # For example, if a quota check failed with an error indicating the calling
                    # project hasn't enabled the accessed service, this can contain a URL pointing
                    # directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user
                    # which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at
                      # https://www.rfc-editor.org/rfc/bcp/bcp47.txt.
                      # Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "futureLimit": 3.14, # Future quota limit being rolled out. The limit's unit depends on the quota
                      #  type or metric.
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type
                      # or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                  "rolloutStatus": "A String", # Rollout status of the future quota limit.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error.
                # This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "getVersionOperationMetadata": {
        "inlineSbomInfo": {
          "currentComponentVersions": { # A mapping of components to their currently-applied versions or other
              # appropriate identifiers.
            "a_key": "A String",
          },
          "targetComponentVersions": { # A mapping of components to their target versions or other appropriate
              # identifiers.
            "a_key": "A String",
          },
        },
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error
          # message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error
          # status code that was returned. For example, a `404` means the
          # resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is
          # defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested.
          # This value is inRFC3339
          # text format.
      "instancesBulkInsertOperationMetadata": {
        "perLocationStatus": { # Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "createdVmCount": 42, # [Output Only] Count of VMs successfully created so far.
            "deletedVmCount": 42, # [Output Only] Count of VMs that got deleted during rollback.
            "failedToCreateVmCount": 42, # [Output Only] Count of VMs that started creating but encountered an
                # error.
            "status": "A String", # [Output Only] Creation status of BulkInsert operation - information
                # if the flow is rolling forward or rolling back.
            "targetVmCount": 42, # [Output Only] Count of VMs originally planned to be created.
          },
        },
      },
      "kind": "compute#operation", # Output only. [Output Only] Type of the resource. Always `compute#operation` for
          # Operation resources.
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # Output only. [Output Only] An ID that represents a group of operations, such as when a
          # group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`,
          # `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100.
          # There is no requirement that this be linear or support any granularity of
          # operations. This should not be used to guess when the operation will be
          # complete. This number should monotonically increase as the operation
          # progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only
          # applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # Output only. [Output Only] Server-defined URL for this resource with the resource id.
      "setCommonInstanceMetadataOperationMetadata": { # Output only. [Output Only] If the operation is for projects.setCommonInstanceMetadata,
          # this field will contain information on all underlying zonal actions and
          # their state.
        "clientOperationId": "A String", # [Output Only] The client operation id.
        "perLocationOperations": { # [Output Only] Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "error": { # The `Status` type defines a logical error model that is suitable for # [Output Only] If state is `ABANDONED` or `FAILED`, this field is
                # populated.
                # different programming environments, including REST APIs and RPC APIs. It is
                # used by [gRPC](https://github.com/grpc). Each `Status` message contains
                # three pieces of data: error code, error message, and error details.
                #
                # You can find out more about this error model and how to work with it in the
                # [API Design Guide](https://cloud.google.com/apis/design/errors).
              "code": 42, # The status code, which should be an enum value of google.rpc.Code.
              "details": [ # A list of messages that carry the error details.  There is a common set of
                  # message types for APIs to use.
                {
                  "a_key": "", # Properties of the object. Contains field @type with type URL.
                },
              ],
              "message": "A String", # A developer-facing error message, which should be in English. Any
                  # user-facing error message should be localized and sent in the
                  # google.rpc.Status.details field, or localized by the client.
            },
            "state": "A String", # [Output Only] Status of the action, which can be one of the following:
                # `PROPAGATING`, `PROPAGATED`, `ABANDONED`, `FAILED`, or `DONE`.
          },
        },
      },
      "startTime": "A String", # [Output Only] The time that this operation was started by the server.
          # This value is inRFC3339
          # text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the
          # following:
          # `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the
          # operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation
          # of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For
          # operations related to creating a snapshot, this points to the disk
          # that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example:
          # `user@example.com` or
          # `alice_smith_identifier (global/workforcePools/example-com-us-employees)`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the
          # operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
              # Engine returns NO_RESULTS_ON_PAGE if there
              # are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key:
              # value format. For example:
              #
              # "data": [
              #   {
              #    "key": "scope",
              #    "value": "zones/us-east1-d"
              #   }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being
                  # returned. For example, for warnings where there are no results in a list
                  # request for a particular zone, this key might be scope and
                  # the key value might be the zone name. Other examples might be a key
                  # indicating a deprecated resource and a suggested replacement, or a
                  # warning about invalid network settings (for example, if an instance
                  # attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only
          # applicable when performing per-zone operations.
    }

`testIamPermissions(project, resource, body=None, x__xgafv=None)`

    Returns permissions that a caller has on the specified resource.

    Args:
      project: string, Project ID for this request. (required)
      resource: string, Name or id of the resource for this request. (required)
      body: object, The request body.
        The object takes the form of:

    {
      "permissions": [ # The set of permissions to check for the 'resource'. Permissions with
          # wildcards (such as '*' or 'storage.*') are not allowed.
        "A String",
      ],
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        {
      "permissions": [ # A subset of `TestPermissionsRequest.permissions` that the caller is
          # allowed.
        "A String",
      ],
    }

`update(project, urlMap, body=None, requestId=None, x__xgafv=None)`

    Updates the specified UrlMap resource with the data included in the
    request.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to update. (required)
      body: object, The request body.
        The object takes the form of:

    { # Represents a URL Map resource.
        #
        # Compute Engine has two URL Map resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
        # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
        #
        # A URL map resource is a component of certain types of cloud load balancers
        # and Traffic Director:
        #
        # * urlMaps are used by global external Application Load
        # Balancers, classic Application Load Balancers, and cross-region internal
        # Application Load Balancers.
        # * regionUrlMaps are used by internal Application Load Balancers,
        # regional external Application Load Balancers and regional internal
        # Application Load Balancers.
        #
        # For a list of supported URL map features by the load balancer type, see the
        # Load balancing features: Routing and traffic management table.
        #
        # For a list of supported URL map features for Traffic Director, see the
        # Traffic Director features: Routing and traffic management table.
        #
        # This resource defines mappings from hostnames and URL paths to either a
        # backend service or a backend bucket.
        #
        # To use the global urlMaps resource, the backend service must
        # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
        # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
        # information, read URL
        # Map Concepts.
      "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
          # text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
          # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
          #
          # This policy takes
          # effect at the load balancer level and applies only when no policy has been
          # defined for the error code at lower levels like PathMatcher, RouteRule and
          # PathRule within this UrlMap.
          #
          # For example, consider a UrlMap with the
          # following configuration:
          #
          #
          #      - defaultCustomErrorResponsePolicy containing policies for
          #      responding to 5xx and 4xx errors
          #      - A PathMatcher configured for *.example.com has
          #      defaultCustomErrorResponsePolicy for 4xx.
          #
          # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
          # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
          # a request that does not match any host in *.example.com such
          # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
          # takes effect.
          #
          # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
          # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
          # a retry, if load balancer is successful in reaching the
          # service, the defaultCustomErrorResponsePolicy is ignored and
          # the response from the service is returned to the client.
          #
          # defaultCustomErrorResponsePolicy is supported only for
          # global external Application Load Balancers.
          # backend service or backend bucket responds with an error.
        "errorResponseRules": [ # Specifies rules for returning error responses.
            #
            # In a given policy, if you specify rules for both a range of error codes
            # as well as rules for specific error codes then rules with specific error
            # codes have a higher priority. For example, assume that you configure a rule
            # for 401 (Un-authorized) code, and another for all 4 series
            # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
            # However if the backend service returns a 403, the rule for4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along
              # with the custom error content and the response code returned by the backend
              # service.
            "matchResponseCodes": [ # Valid values include:
                #
                #
                #      - A number between 400 and 599: For example
                #      401 or 503, in which case the load balancer
                #      applies the policy if the error code exactly matches this value.
                #      - 5xx: Load Balancer will apply the policy if the
                #      backend service responds with any response code in the range of
                #      500 to 599.
                #    - 4xx: Load
                #      Balancer will apply the policy if the backend service responds with any
                #      response code in the range of 400 to
                #      499.
                #
                # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                # error content. If overrideResponseCode is not supplied, the
                # same response code returned by the original backend bucket or backend
                # service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                #
                # path must start
                # with a leading slash. path cannot have trailing slashes.
                #
                # If the file is not available in backendBucket  or the
                # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                #
                # The value must
                # be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that
            # contains the custom error content. Examples are:
            #
            #
            #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
            #      - global/backendBuckets/myBackendBucket
            #
            # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
            # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
            #
            # If load balancer cannot reach
            # the backendBucket, a simple Not Found Error will
            # be returned, with the original response code (oroverrideResponseCode if configured).
            #
            # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the
          # hostRules match. The load balancer performs advanced routing
          # actions, such as URL rewrites and header transformations, before forwarding
          # the request to the selected backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          #  URL maps for classic Application Load Balancers only support
          # the urlRewrite action within defaultRouteAction.
          #
          #
          # defaultRouteAction has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
        "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
            # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
            # property must be specified. This policy cannot be specified if any target
            # backend has Identity-Aware Proxy enabled.
          "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
              # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
              # header names can be specified. The cache is bypassed for all `cacheMode`
              # values.
            "A String",
          ],
          "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
              # on the backend type: for Backend Services, the complete request URI is
              # used; for Backend Buckets, the request URI is used without the protocol or
              # host, and only query parameters known to Cloud Storage are included.
              # Policy defined on Route Action.
            "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                # parameters will be included. Either specify `excludedQueryParameters`
                # or `includedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
              "A String",
            ],
            "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # host is never included in a Backend Bucket's cache key. Attempting to set
                # it on a route that points exclusively to Backend Buckets will result in a
                # configuration error.
            "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket, as the
                # protocol is never included in a Backend Bucket's cache key. Attempting to
                # set on a route that points exclusively to Backend Buckets will result in
                # a configuration error.
            "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                # `includedQueryParameters` and `excludedQueryParameters`. If neither
                # is set, the entire query string will be included. If false, the query
                # string will be excluded from the cache key entirely.
                #
                # Note: This field applies to routes that use backend services. Attempting
                # to set it on a route that points exclusively to Backend Buckets will
                # result in a configuration error. For routes that point to a Backend
                # Bucket, use `includedQueryParameters` to define which parameters should
                # be part of the cache key.
            "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                # The name=value pair will be used in the cache key Cloud CDN generates.
                #
                # Note: This setting is only applicable to routes that use a Backend
                # Service. It does not affect requests served by a Backend Bucket.
                # Attempting to set it on a route that points exclusively to Backend
                # Buckets will result in a configuration error. Up to 5 cookie names can be
                # specified.
              "A String",
            ],
            "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
              "A String",
            ],
            "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                # parameters will be excluded. Either specify `includedQueryParameters`
                # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                # encoded and not treated as delimiters.
              "A String",
            ],
          },
          "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
              # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
          "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
              # content. This is used to clamp the max-age (or Expires) value sent to the
              # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
              # is used for the response max-age directive, along with a "public"
              # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
              # clamps the max-age from the origin (if specified), or else sets the
              # response max-age directive to the lesser of the `clientTtl` and
              # `defaultTtl`, and also ensures a "public" cache-control directive is
              # present. The maximum allowed value is 31,622,400s (1 year). If not
              # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
              # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
              # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
              # "always revalidate". The value of `defaultTtl` cannot be set to a value
              # greater than that of `maxTtl`. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
              # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
              # accessed objects may be evicted from the cache before the defined TTL. If
              # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
              # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
              # `USE_ORIGIN_HEADERS`.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
              # attempt to set a max-age or s-maxage higher than this, or an Expires header
              # more than `maxTtl` seconds in the future will be capped at the value of
              # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
              # Headers sent to the client will not be modified. Setting a TTL of "0" means
              # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
              # Infrequently accessed objects may be evicted from the cache before the
              # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
              # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
              # mode.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
              # to apply fine-grained caching for common errors or redirects.
              # This can reduce the load on your origin and improve end-user
              # experience by reducing response latency.
              # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
              # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
              # the specified response code that lack any Cache-Control, Expires, or
              # Pragma: no-cache directives. When the `cacheMode` is set to
              # `FORCE_CACHE_ALL`, negative caching applies to all responses
              # with the specified response code, and overrides any caching headers. By
              # default, Cloud CDN applies the following TTLs to these HTTP status codes:
              #
              # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
              # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
              # * 405 (Method Not Found), 501 (Not Implemented): 60s
              #
              # These defaults can be overridden in `negativeCachingPolicy`.
              # If not specified, Cloud CDN applies negative caching by default.
          "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
              # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
              # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
              # CDN's default cache TTLs. Note that when specifying an explicit
              # `negativeCachingPolicy`, you should take care to specify a cache TTL for
              # all response codes that you wish to cache. Cloud CDN will not apply any
              # default negative caching when a policy exists.
            { # Specify CDN TTLs for response error codes.
              "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                  # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                  # specified as values, and you cannot specify a status code more than
                  # once.
              "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                  # corresponding status code.
                  # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                  # objects may be evicted from the cache before the defined TTL.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
          ],
          "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
              # requests into a small number of requests to the origin. If not specified,
              # Cloud CDN applies request coalescing by default.
          "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
              # content with the origin, or when an error is encountered when refreshing
              # the cache.
              # This setting defines the default "max-stale" duration for any cached
              # responses that do not specify a max-stale directive. Stale responses that
              # exceed the TTL configured here will not be served. The default limit
              # (max-stale) is 86400s (1 day), which will allow stale content to be
              # served up to this limit beyond the max-age (or s-maxage) of a cached
              # response.
              # The maximum allowed value is 604800 (1 week).
              # Set this to zero (0) to disable serve-while-stale.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
        },
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
            #
            # Not supported when the URL map is bound to a target gRPC proxy.
            # information about the W3C recommendation for cross-origin resource sharing
            # (CORS), see Fetch API Living
            # Standard.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true
              # indicates that
              # the actual request can include user credentials. This field translates to
              # the Access-Control-Allow-Credentials header.
              #
              # Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
              # header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
              # header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
              # more information, see regular expression syntax.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
              #
              # Regular expressions can only be used when the loadBalancingScheme is
              # set to INTERNAL_SELF_MANAGED.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
              #
              # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, disables the CORS policy.
              # The default value is false, which indicates that the CORS
              # policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
              # header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in
              # seconds. This field translates to the Access-Control-Max-Age
              # header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by a load balancer on a percentage of requests before sending
            # those requests to the backend service. Similarly requests from clients can
            # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
            # that are configured with a fault_injection_policy if:
            # 1. The traffic is generated by fault injection AND
            # 2. The fault injection is not a delay fault injection.
            # Fault injection is not supported with the classic Application Load Balancer
            # . To see which load balancers support fault injection,
            # see Load
            # balancing: Routing and traffic management features.
            # the resiliency of clients to backend service failure. As part of fault
            # injection, when clients send requests to a backend service, delays can be
            # introduced by the load balancer on a percentage of requests before sending
            # those request to the backend service. Similarly requests from clients can be
            # aborted by the load balancer for a percentage of requests.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
              # injection.
            "httpStatus": 42, # The HTTP status code used to abort the request.
                #
                # The value must be from 200 to 599 inclusive.
                #
                # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                # according to this
                # mapping table. HTTP status 200 is mapped to gRPC status
                # UNKNOWN. Injecting an OK status is currently not supported by
                # Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                # that is aborted as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
              # injection, before being sent to a backend service.
              # request to the backend service as part of fault injection.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                # which a delay is introduced as part of fault injection.
                #
                # The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
            # Global EXTERNAL_MANAGED load balancer schemes.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route
            # dynamically processes and delivers images from the network edge.
            # Image Optimization is only available for Global External Application Load
            # Balancers.
            # Either Cloud CDN must be enabled on the backend service or backend bucket
            # serving the route, or cache policy must be configured on the same route.
          "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
            # Unlike the timeout field where the timeout duration starts
            # from the time the request has been fully processed (known as*end-of-stream*),
            # the duration in this field is computed from the beginning of the stream
            # until the response has been processed, including all retries. A
            # stream that does not complete in this duration is closed.
            #
            # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
            # with the route.
            #
            # This field is only allowed if the Url map is used with backend services
            # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
            # are shadowed to a separate mirrored backend service. The load balancer does
            # not wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host / authority header is suffixed with-shadow.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # are shadowed to a separate mirrored backend service. The load balancer
            # doesn't wait for responses from the shadow service. Before sending traffic
            # to the shadow service, the host or authority header is suffixed with-shadow.
          "backendService": "A String", # The full or partial URL to the BackendService resource being
              # mirrored to.
              #
              # The backend service configured for a mirroring
              # policy must reference backends that are of the same type as the original
              # backend service matched in the URL map.
              #
              # Serverless NEG backends are not currently supported as a mirrored
              # backend service.
          "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
              # If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
              #
              # If not specified, will use the timeout set in theHttpRouteAction field.
              # If timeout in the HttpRouteAction field is not set, this field
              # uses the largest timeout
              # among all backend services associated with the route.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has the validateForProxyless field set to true.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
              # values are:
              #
              #    - 5xx: retry is attempted if the instance or endpoint
              #    responds with any 5xx response code, or if the instance or
              #    endpoint does not respond at all. For example, disconnects, reset, read
              #    timeout, connection failure, and refused streams.
              #    - gateway-error: Similar to 5xx, but only
              #    applies to response codes 502, 503 or504.
              #    - connect-failure: a retry is attempted on failures
              #    connecting to the instance or endpoint. For example, connection
              #    timeouts.
              #    - retriable-4xx: a retry is attempted if the instance
              #    or endpoint responds with a 4xx response code.
              #    The only error that you can retry is error code 409.
              #    - refused-stream: a retry is attempted if the instance
              #    or endpoint resets the stream with a REFUSED_STREAM error
              #    code. This reset type indicates that it is safe to retry.
              #    - cancelled: a retry is attempted if the gRPC status
              #    code in the response header is set to cancelled.
              #    - deadline-exceeded: a retry is attempted if the gRPC
              #    status code in the response header is set todeadline-exceeded.
              #    - internal: a retry is attempted if the gRPC
              #    status code in the response header is set tointernal.
              #    - resource-exhausted: a retry is attempted if the gRPC
              #    status code in the response header is set toresource-exhausted.
              #    - unavailable: a retry is attempted if the gRPC
              #    status code in the response header is set tounavailable.
              #
              # Only the following codes are supported when the URL map is bound to
              # target gRPC proxy that has validateForProxyless field set to true.
              #
              #    - cancelled
              #    - deadline-exceeded
              #    - internal
              #    - resource-exhausted
              #    - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
            # time the request has been fully processed (known as *end-of-stream*)
            # up until the response has been processed. Timeout includes
            # all retries.
            #
            # If not specified, this field uses the largest timeout among all backend
            # services associated with the route.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has validateForProxyless field set to true.
            # as a count of seconds and fractions of seconds at nanosecond
            # resolution. It is independent of any calendar and concepts like "day"
            # or "month". Range is approximately 10,000 years.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
              # Durations less than one second are represented with a 0
              # `seconds` field and a positive `nanos` field. Must be from 0
              # to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
            # to the matched service.
            #
            #  urlRewrite is the only action supported in UrlMaps
            # for classic Application Load Balancers.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has the validateForProxyless field set to true.
            # backend service.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
              # host header is replaced with contents of hostRewrite.
              #
              # The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
              # matching portion of the request's path is replaced bypathPrefixRewrite.
              #
              # The value must be from 1 to 1024 characters.
          "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
              # header) using the HTTP template syntax.
              #
              # A corresponding
              # path_template_match must be specified. Any template variables must exist in
              # the path_template_match field.
              #
              #
              #       - -At least one variable must be specified in the path_template_match
              #       field
              #    - You can omit variables from the rewritten URL
              #       - The * and ** operators cannot be matched
              #       unless they have a corresponding variable name - e.g.
              #       {format=*} or {var=**}.
              #
              # For example, a path_template_match of /static/{format=**}
              # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
              # rewrite, so that /{country}/{format}/{suffix=**} can be
              # rewritten as /content/{format}/{country}/{suffix}.
              #
              # At least
              # one non-empty routeRules[].matchRules[].path_template_match is
              # required.
              #
              # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
          "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
            "pathPattern": "A String", # The regular expression used to match against the URL path.
                # It uses RE2 syntax with the following constraints:
                #
                #
                #      - Any single character operators
                #      - Groups are allowed to have only submatch operator inside
                #      - Groups are allowed only without any char repetition, e.g.
                #      .*
                #      - Any char repetition, e.g. .*, is
                #      only allowed to be used in a single regex together with:
                #
                #
                #             - Empty string operators
                #             - Other repetitions
                #             - Ranges
                #             - Repetitions of ranges
                #
                #
                #      - Ranges are only allowed to have:
                #
                #
                #             - Character range
                #             - Digits range
                #             - Symbols listed in characters allowed for ranges
            "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                # the path.
          },
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
            # occurs. The weights determine the fraction of traffic that flows to
            # their corresponding backend service. If all traffic needs to
            # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
            #
            # After a backend service is identified and before forwarding
            # the request to
            # the backend service, advanced routing actions such as URL rewrites and
            # header transformations are applied depending on additional settings
            # specified in this HttpRouteAction.
          { # In contrast to a single BackendService in
              # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
              # multiple backend services. The volume of traffic for each
              # backend service is proportional to the weight specified
              # in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService
                # resource. Before
                # forwarding the request to backendService, the load balancer
                # applies any relevant headerActions specified as part of thisbackendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                # effect for the selected backendService.
                #
                # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                #
                # headerAction is not supported for load balancers that have
                # their loadBalancingScheme set to EXTERNAL.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # the request is passed along to the selected backendService.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                  # client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                # computed asweight / (sum of all weightedBackendService weights in routeAction).
                #
                # The selection of a backend service is determined only for new traffic.
                # Once a user's request has been directed to a backend service,
                # subsequent requests are sent to the same backend service as
                # determined by the backend service's session affinity policy.
                # Don't configure session affinity if you're using weighted traffic
                # splitting. If you do, the weighted traffic splitting configuration takes
                # precedence.
                #
                # The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to
          # which traffic is directed if none of the hostRules match.
          # If defaultRouteAction is also specified, advanced
          # routing actions, such as URL rewrites, take effect before sending the
          # request to the backend.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # defaultService has no effect when the URL map is bound
          # to a target gRPC proxy that has the validateForProxyless field
          # set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
          # is redirected to a URL specified by defaultUrlRedirect.
          #
          #
          # Only one of defaultUrlRedirect, defaultService
          # or defaultRouteAction.weightedBackendService can be set.
          #
          #
          # Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
            # was supplied in the request.
            #
            # The value must be from 1 to 255
            # characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
            # set to HTTPS.
            # If set to false, the URL scheme of the redirected request
            # remains the same as that of the request.
            #
            # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
            #
            # The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
            # that was supplied in the request.
            #
            # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
            # the HttpRouteRuleMatch, retaining the remaining portion
            # of the URL before redirecting the request.
            #
            # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
            # supplied, the path of the original request is used for the redirect.
            #
            # The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
            #
            # Supported values are:
            #
            #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
            #    to 301.
            #    - FOUND, which corresponds to 302.
            #    - SEE_OTHER which corresponds to 303.
            #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
            #    method is retained.
            #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
            #    method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original
            # URL is
            # removed before redirecting the request. If set to false, the
            # query portion of the original URL is retained.
            #
            # The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you
          # create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
          # This field is used in optimistic locking. This field is ignored when
          # inserting a UrlMap. An up-to-date fingerprint must be provided
          # in order to update the UrlMap, otherwise the request will
          # fail with error 412 conditionNotMet.
          #
          # To see the latest fingerprint, make a get() request to
          # retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
          # for the selected backendService.
          #
          # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
          #
          # headerAction is not supported for load balancers
          # that have
          # their loadBalancingScheme set to EXTERNAL.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
          # the request is passed along to the selected backendService.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
            # client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values
                # that already
                # exist for the header. If true, headerValue is set for the
                # header, discarding any values that were set for that header.
                #
                # The default value is true,
                # unless a variable is present in headerValue,
                # in which case the default value is false.
                # .
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
            # response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps
            # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with
              # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
              # that case, * must be the first character, and if followed by
              # anything, the immediate following character must be either -
              # or ..
              #
              # * based matching is not supported when the URL map is bound
              # to a target gRPC proxy that has the validateForProxyless field
              # set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
              # of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
          # defined by the server.
      "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
          # url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created.
          # The name must be 1-63 characters long, and comply withRFC1035.
          # Specifically, the name must be 1-63 characters long and match the regular
          # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
          # character must be a lowercase letter, and all following characters must
          # be a dash, lowercase letter, or digit, except the last character, which
          # cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService
            # from the longest-matched rule will serve the URL. If no rule was matched, the
            # default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
              # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
              #
              # This policy takes
              # effect at the PathMatcher level and applies only when no
              # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
              # in defaultCustomErrorResponsePolicy, then a policy defined for
              # the error code in UrlMap.defaultCustomErrorResponsePolicy
              # takes effect.
              #
              # For example, consider a UrlMap with the following
              # configuration:
              #
              #
              #      - UrlMap.defaultCustomErrorResponsePolicy is configured
              #      with policies for 5xx and 4xx errors
              #      - A RouteRule for /coming_soon/ is configured for the
              #      error code 404.
              #
              # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
              # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
              # the policy in RouteRule.customErrorResponsePolicy takes
              # effect. If any of the requests in this example encounter a 500
              # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
              #
              # When
              # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
              # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
              # a retry, if load balancer is successful in reaching the
              # service, the defaultCustomErrorResponsePolicy is ignored and
              # the response from the service is returned to the client.
              #
              # defaultCustomErrorResponsePolicy is supported only for
              # global external Application Load Balancers.
              # backend service or backend bucket responds with an error.
            "errorResponseRules": [ # Specifies rules for returning error responses.
                #
                # In a given policy, if you specify rules for both a range of error codes
                # as well as rules for specific error codes then rules with specific error
                # codes have a higher priority. For example, assume that you configure a rule
                # for 401 (Un-authorized) code, and another for all 4 series
                # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                # However if the backend service returns a 403, the rule for4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along
                  # with the custom error content and the response code returned by the backend
                  # service.
                "matchResponseCodes": [ # Valid values include:
                    #
                    #
                    #      - A number between 400 and 599: For example
                    #      401 or 503, in which case the load balancer
                    #      applies the policy if the error code exactly matches this value.
                    #      - 5xx: Load Balancer will apply the policy if the
                    #      backend service responds with any response code in the range of
                    #      500 to 599.
                    #    - 4xx: Load
                    #      Balancer will apply the policy if the backend service responds with any
                    #      response code in the range of 400 to
                    #      499.
                    #
                    # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                    # error content. If overrideResponseCode is not supplied, the
                    # same response code returned by the original backend bucket or backend
                    # service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                    #
                    # path must start
                    # with a leading slash. path cannot have trailing slashes.
                    #
                    # If the file is not available in backendBucket  or the
                    # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                    #
                    # The value must
                    # be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                # contains the custom error content. Examples are:
                #
                #
                #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                #      - global/backendBuckets/myBackendBucket
                #
                # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                #
                # If load balancer cannot reach
                # the backendBucket, a simple Not Found Error will
                # be returned, with the original response code (oroverrideResponseCode if configured).
                #
                # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the
              # pathRules or routeRules match. The load balancer
              # performs advanced routing actions, such as URL rewrites and
              # header transformations, before forwarding the request to the
              # selected backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # URL maps for classic Application Load Balancers only support
              # the urlRewrite action within a path matcher'sdefaultRouteAction.
            "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                # property must be specified. This policy cannot be specified if any target
                # backend has Identity-Aware Proxy enabled.
              "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                  # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                  # header names can be specified. The cache is bypassed for all `cacheMode`
                  # values.
                "A String",
              ],
              "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                  # on the backend type: for Backend Services, the complete request URI is
                  # used; for Backend Buckets, the request URI is used without the protocol or
                  # host, and only query parameters known to Cloud Storage are included.
                  # Policy defined on Route Action.
                "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                    # parameters will be included. Either specify `excludedQueryParameters`
                    # or `includedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                  "A String",
                ],
                "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # host is never included in a Backend Bucket's cache key. Attempting to set
                    # it on a route that points exclusively to Backend Buckets will result in a
                    # configuration error.
                "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket, as the
                    # protocol is never included in a Backend Bucket's cache key. Attempting to
                    # set on a route that points exclusively to Backend Buckets will result in
                    # a configuration error.
                "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                    # `includedQueryParameters` and `excludedQueryParameters`. If neither
                    # is set, the entire query string will be included. If false, the query
                    # string will be excluded from the cache key entirely.
                    #
                    # Note: This field applies to routes that use backend services. Attempting
                    # to set it on a route that points exclusively to Backend Buckets will
                    # result in a configuration error. For routes that point to a Backend
                    # Bucket, use `includedQueryParameters` to define which parameters should
                    # be part of the cache key.
                "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                    # The name=value pair will be used in the cache key Cloud CDN generates.
                    #
                    # Note: This setting is only applicable to routes that use a Backend
                    # Service. It does not affect requests served by a Backend Bucket.
                    # Attempting to set it on a route that points exclusively to Backend
                    # Buckets will result in a configuration error. Up to 5 cookie names can be
                    # specified.
                  "A String",
                ],
                "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                  "A String",
                ],
                "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                    # parameters will be excluded. Either specify `includedQueryParameters`
                    # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                    # encoded and not treated as delimiters.
                  "A String",
                ],
              },
              "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                  # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
              "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                  # content. This is used to clamp the max-age (or Expires) value sent to the
                  # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                  # is used for the response max-age directive, along with a "public"
                  # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                  # clamps the max-age from the origin (if specified), or else sets the
                  # response max-age directive to the lesser of the `clientTtl` and
                  # `defaultTtl`, and also ensures a "public" cache-control directive is
                  # present. The maximum allowed value is 31,622,400s (1 year). If not
                  # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                  # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                  # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                  # "always revalidate". The value of `defaultTtl` cannot be set to a value
                  # greater than that of `maxTtl`. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                  # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                  # accessed objects may be evicted from the cache before the defined TTL. If
                  # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                  # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                  # `USE_ORIGIN_HEADERS`.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                  # attempt to set a max-age or s-maxage higher than this, or an Expires header
                  # more than `maxTtl` seconds in the future will be capped at the value of
                  # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                  # Headers sent to the client will not be modified. Setting a TTL of "0" means
                  # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                  # Infrequently accessed objects may be evicted from the cache before the
                  # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                  # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                  # mode.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                  # to apply fine-grained caching for common errors or redirects.
                  # This can reduce the load on your origin and improve end-user
                  # experience by reducing response latency.
                  # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                  # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                  # the specified response code that lack any Cache-Control, Expires, or
                  # Pragma: no-cache directives. When the `cacheMode` is set to
                  # `FORCE_CACHE_ALL`, negative caching applies to all responses
                  # with the specified response code, and overrides any caching headers. By
                  # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                  #
                  # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                  # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                  # * 405 (Method Not Found), 501 (Not Implemented): 60s
                  #
                  # These defaults can be overridden in `negativeCachingPolicy`.
                  # If not specified, Cloud CDN applies negative caching by default.
              "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                  # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                  # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                  # CDN's default cache TTLs. Note that when specifying an explicit
                  # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                  # all response codes that you wish to cache. Cloud CDN will not apply any
                  # default negative caching when a policy exists.
                { # Specify CDN TTLs for response error codes.
                  "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                      # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                      # specified as values, and you cannot specify a status code more than
                      # once.
                  "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                      # corresponding status code.
                      # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                      # objects may be evicted from the cache before the defined TTL.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
              ],
              "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                  # requests into a small number of requests to the origin. If not specified,
                  # Cloud CDN applies request coalescing by default.
              "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                  # content with the origin, or when an error is encountered when refreshing
                  # the cache.
                  # This setting defines the default "max-stale" duration for any cached
                  # responses that do not specify a max-stale directive. Stale responses that
                  # exceed the TTL configured here will not be served. The default limit
                  # (max-stale) is 86400s (1 day), which will allow stale content to be
                  # served up to this limit beyond the max-age (or s-maxage) of a cached
                  # response.
                  # The maximum allowed value is 604800 (1 week).
                  # Set this to zero (0) to disable serve-while-stale.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
            },
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
                #
                # Not supported when the URL map is bound to a target gRPC proxy.
                # information about the W3C recommendation for cross-origin resource sharing
                # (CORS), see Fetch API Living
                # Standard.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true
                  # indicates that
                  # the actual request can include user credentials. This field translates to
                  # the Access-Control-Allow-Credentials header.
                  #
                  # Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                  # header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                  # header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                  # more information, see regular expression syntax.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                  #
                  # Regular expressions can only be used when the loadBalancingScheme is
                  # set to INTERNAL_SELF_MANAGED.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                  #
                  # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, disables the CORS policy.
                  # The default value is false, which indicates that the CORS
                  # policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                  # header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                  # seconds. This field translates to the Access-Control-Max-Age
                  # header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by a load balancer on a percentage of requests before sending
                # those requests to the backend service. Similarly requests from clients can
                # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                # that are configured with a fault_injection_policy if:
                # 1. The traffic is generated by fault injection AND
                # 2. The fault injection is not a delay fault injection.
                # Fault injection is not supported with the classic Application Load Balancer
                # . To see which load balancers support fault injection,
                # see Load
                # balancing: Routing and traffic management features.
                # the resiliency of clients to backend service failure. As part of fault
                # injection, when clients send requests to a backend service, delays can be
                # introduced by the load balancer on a percentage of requests before sending
                # those request to the backend service. Similarly requests from clients can be
                # aborted by the load balancer for a percentage of requests.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                  # injection.
                "httpStatus": 42, # The HTTP status code used to abort the request.
                    #
                    # The value must be from 200 to 599 inclusive.
                    #
                    # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                    # according to this
                    # mapping table. HTTP status 200 is mapped to gRPC status
                    # UNKNOWN. Injecting an OK status is currently not supported by
                    # Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                    # that is aborted as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                  # injection, before being sent to a backend service.
                  # request to the backend service as part of fault injection.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                    # which a delay is introduced as part of fault injection.
                    #
                    # The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                # Global EXTERNAL_MANAGED load balancer schemes.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route
                # dynamically processes and delivers images from the network edge.
                # Image Optimization is only available for Global External Application Load
                # Balancers.
                # Either Cloud CDN must be enabled on the backend service or backend bucket
                # serving the route, or cache policy must be configured on the same route.
              "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                # Unlike the timeout field where the timeout duration starts
                # from the time the request has been fully processed (known as*end-of-stream*),
                # the duration in this field is computed from the beginning of the stream
                # until the response has been processed, including all retries. A
                # stream that does not complete in this duration is closed.
                #
                # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                # with the route.
                #
                # This field is only allowed if the Url map is used with backend services
                # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                # are shadowed to a separate mirrored backend service. The load balancer does
                # not wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host / authority header is suffixed with-shadow.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # are shadowed to a separate mirrored backend service. The load balancer
                # doesn't wait for responses from the shadow service. Before sending traffic
                # to the shadow service, the host or authority header is suffixed with-shadow.
              "backendService": "A String", # The full or partial URL to the BackendService resource being
                  # mirrored to.
                  #
                  # The backend service configured for a mirroring
                  # policy must reference backends that are of the same type as the original
                  # backend service matched in the URL map.
                  #
                  # Serverless NEG backends are not currently supported as a mirrored
                  # backend service.
              "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                  # If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                  #
                  # If not specified, will use the timeout set in theHttpRouteAction field.
                  # If timeout in the HttpRouteAction field is not set, this field
                  # uses the largest timeout
                  # among all backend services associated with the route.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                  # values are:
                  #
                  #    - 5xx: retry is attempted if the instance or endpoint
                  #    responds with any 5xx response code, or if the instance or
                  #    endpoint does not respond at all. For example, disconnects, reset, read
                  #    timeout, connection failure, and refused streams.
                  #    - gateway-error: Similar to 5xx, but only
                  #    applies to response codes 502, 503 or504.
                  #    - connect-failure: a retry is attempted on failures
                  #    connecting to the instance or endpoint. For example, connection
                  #    timeouts.
                  #    - retriable-4xx: a retry is attempted if the instance
                  #    or endpoint responds with a 4xx response code.
                  #    The only error that you can retry is error code 409.
                  #    - refused-stream: a retry is attempted if the instance
                  #    or endpoint resets the stream with a REFUSED_STREAM error
                  #    code. This reset type indicates that it is safe to retry.
                  #    - cancelled: a retry is attempted if the gRPC status
                  #    code in the response header is set to cancelled.
                  #    - deadline-exceeded: a retry is attempted if the gRPC
                  #    status code in the response header is set todeadline-exceeded.
                  #    - internal: a retry is attempted if the gRPC
                  #    status code in the response header is set tointernal.
                  #    - resource-exhausted: a retry is attempted if the gRPC
                  #    status code in the response header is set toresource-exhausted.
                  #    - unavailable: a retry is attempted if the gRPC
                  #    status code in the response header is set tounavailable.
                  #
                  # Only the following codes are supported when the URL map is bound to
                  # target gRPC proxy that has validateForProxyless field set to true.
                  #
                  #    - cancelled
                  #    - deadline-exceeded
                  #    - internal
                  #    - resource-exhausted
                  #    - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                # time the request has been fully processed (known as *end-of-stream*)
                # up until the response has been processed. Timeout includes
                # all retries.
                #
                # If not specified, this field uses the largest timeout among all backend
                # services associated with the route.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                # to the matched service.
                #
                #  urlRewrite is the only action supported in UrlMaps
                # for classic Application Load Balancers.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # backend service.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                  # host header is replaced with contents of hostRewrite.
                  #
                  # The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                  # matching portion of the request's path is replaced bypathPrefixRewrite.
                  #
                  # The value must be from 1 to 1024 characters.
              "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                  # header) using the HTTP template syntax.
                  #
                  # A corresponding
                  # path_template_match must be specified. Any template variables must exist in
                  # the path_template_match field.
                  #
                  #
                  #       - -At least one variable must be specified in the path_template_match
                  #       field
                  #    - You can omit variables from the rewritten URL
                  #       - The * and ** operators cannot be matched
                  #       unless they have a corresponding variable name - e.g.
                  #       {format=*} or {var=**}.
                  #
                  # For example, a path_template_match of /static/{format=**}
                  # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                  # rewrite, so that /{country}/{format}/{suffix=**} can be
                  # rewritten as /content/{format}/{country}/{suffix}.
                  #
                  # At least
                  # one non-empty routeRules[].matchRules[].path_template_match is
                  # required.
                  #
                  # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
              "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                "pathPattern": "A String", # The regular expression used to match against the URL path.
                    # It uses RE2 syntax with the following constraints:
                    #
                    #
                    #      - Any single character operators
                    #      - Groups are allowed to have only submatch operator inside
                    #      - Groups are allowed only without any char repetition, e.g.
                    #      .*
                    #      - Any char repetition, e.g. .*, is
                    #      only allowed to be used in a single regex together with:
                    #
                    #
                    #             - Empty string operators
                    #             - Other repetitions
                    #             - Ranges
                    #             - Repetitions of ranges
                    #
                    #
                    #      - Ranges are only allowed to have:
                    #
                    #
                    #             - Character range
                    #             - Digits range
                    #             - Symbols listed in characters allowed for ranges
                "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                    # the path.
              },
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                # occurs. The weights determine the fraction of traffic that flows to
                # their corresponding backend service. If all traffic needs to
                # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                #
                # After a backend service is identified and before forwarding
                # the request to
                # the backend service, advanced routing actions such as URL rewrites and
                # header transformations are applied depending on additional settings
                # specified in this HttpRouteAction.
              { # In contrast to a single BackendService in
                  # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                  # multiple backend services. The volume of traffic for each
                  # backend service is proportional to the weight specified
                  # in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService
                    # resource. Before
                    # forwarding the request to backendService, the load balancer
                    # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                    # effect for the selected backendService.
                    #
                    # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                    #
                    # headerAction is not supported for load balancers that have
                    # their loadBalancingScheme set to EXTERNAL.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # the request is passed along to the selected backendService.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                      # client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                    # computed asweight / (sum of all weightedBackendService weights in routeAction).
                    #
                    # The selection of a backend service is determined only for new traffic.
                    # Once a user's request has been directed to a backend service,
                    # subsequent requests are sent to the same backend service as
                    # determined by the backend service's session affinity policy.
                    # Don't configure session affinity if you're using weighted traffic
                    # splitting. If you do, the weighted traffic splitting configuration takes
                    # precedence.
                    #
                    # The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This
              # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
              # matched. For example, the
              # following are all valid URLs to a BackendService resource:
              #
              #
              #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
              #      - compute/v1/projects/project/global/backendServices/backendService
              #      - global/backendServices/backendService
              #
              #
              # If defaultRouteAction is also specified, advanced
              # routing actions, such as URL rewrites, take effect before sending the
              # request to the backend.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Authorization requires one or more of the following Google IAM permissions on the
              # specified resource default_service:
              #
              #
              #       - compute.backendBuckets.use
              #       - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
              # by defaultUrlRedirect.
              #
              #
              # Only one of defaultUrlRedirect, defaultService
              # or defaultRouteAction.weightedBackendService can be set.
              #
              #
              # Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                # was supplied in the request.
                #
                # The value must be from 1 to 255
                # characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                # set to HTTPS.
                # If set to false, the URL scheme of the redirected request
                # remains the same as that of the request.
                #
                # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                #
                # The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                # that was supplied in the request.
                #
                # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                # the HttpRouteRuleMatch, retaining the remaining portion
                # of the URL before redirecting the request.
                #
                # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                # supplied, the path of the original request is used for the redirect.
                #
                # The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                #
                # Supported values are:
                #
                #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                #    to 301.
                #    - FOUND, which corresponds to 302.
                #    - SEE_OTHER which corresponds to 303.
                #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                #    method is retained.
                #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                #    method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                # URL is
                # removed before redirecting the request. If set to false, the
                # query portion of the original URL is retained.
                #
                # The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you
              # create the resource.
          "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
              # for the selected backend service.
              #
              # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
              #
              # HeaderAction is not supported for load balancers
              # that have
              # their loadBalancingScheme set to EXTERNAL.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
              # the request is passed along to the selected backendService.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                # client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values
                    # that already
                    # exist for the header. If true, headerValue is set for the
                    # header, discarding any values that were set for that header.
                    #
                    # The default value is true,
                    # unless a variable is present in headerValue,
                    # in which case the default value is false.
                    # .
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                # response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules
              # when routing based on simple path matching is all that's required. A path
              # rule can only include a wildcard character (*) after a
              # forward slash character ("/").
              #
              # The order by which path rules are specified does not matter.
              # Matches are always done on the longest-path-first basis.
              #
              # For example: a pathRule with a path /a/b/c/* will match
              # before /a/b/* irrespective of the order in which those paths appear in this
              # list.
              #
              # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the PathRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A PathRule for /coming_soon/ is configured for the error
                  #      code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in PathRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with /
                  # and the only place a * is allowed is at the end following
                  # a /.  The string fed to the path matcher does not include
                  # any text after the first ? or #, and
                  # those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected
                  # backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a path rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
              # desired. routeRules are evaluated in order of priority, from
              # the lowest to highest number.
              #
              # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request
                # and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                  # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                  #
                  # If a policy for an
                  # error code is not configured for the RouteRule, a policy for
                  # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                  # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                  # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                  # effect.
                  #
                  # For example, consider a UrlMap with the following configuration:
                  #
                  #
                  #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                  #      with policies for 5xx and 4xx errors
                  #      - A RouteRule for /coming_soon/ is configured for the
                  #      error code 404.
                  #
                  # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                  # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                  # the policy in RouteRule.customErrorResponsePolicy takes
                  # effect. If any of the requests in this example encounter a 500
                  # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                  #
                  # When
                  # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                  # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                  # a retry, if load balancer is successful in reaching the
                  # service, the customErrorResponsePolicy is ignored and
                  # the response from the service is returned to the client.
                  #
                  # customErrorResponsePolicy is supported only for
                  # global external Application Load Balancers.
                  # backend service or backend bucket responds with an error.
                "errorResponseRules": [ # Specifies rules for returning error responses.
                    #
                    # In a given policy, if you specify rules for both a range of error codes
                    # as well as rules for specific error codes then rules with specific error
                    # codes have a higher priority. For example, assume that you configure a rule
                    # for 401 (Un-authorized) code, and another for all 4 series
                    # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                    # However if the backend service returns a 403, the rule for4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along
                      # with the custom error content and the response code returned by the backend
                      # service.
                    "matchResponseCodes": [ # Valid values include:
                        #
                        #
                        #      - A number between 400 and 599: For example
                        #      401 or 503, in which case the load balancer
                        #      applies the policy if the error code exactly matches this value.
                        #      - 5xx: Load Balancer will apply the policy if the
                        #      backend service responds with any response code in the range of
                        #      500 to 599.
                        #    - 4xx: Load
                        #      Balancer will apply the policy if the backend service responds with any
                        #      response code in the range of 400 to
                        #      499.
                        #
                        # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                        # error content. If overrideResponseCode is not supplied, the
                        # same response code returned by the original backend bucket or backend
                        # service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                        #
                        # path must start
                        # with a leading slash. path cannot have trailing slashes.
                        #
                        # If the file is not available in backendBucket  or the
                        # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                        #
                        # The value must
                        # be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                    # contains the custom error content. Examples are:
                    #
                    #
                    #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                    #      - global/backendBuckets/myBackendBucket
                    #
                    # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                    # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                    #
                    # If load balancer cannot reach
                    # the backendBucket, a simple Not Found Error will
                    # be returned, with the original response code (oroverrideResponseCode if configured).
                    #
                    # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule.
                  #
                  #
                  # The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                  # for the selected backendService.
                  #
                  # The headerAction value specified here is applied before the
                  # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                  #
                  # HeaderAction is not supported for load balancers
                  # that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterConfigs only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                  # Director. httpFilterMetadata only applies for load balancers
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                  # more details.
                  #
                  #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings
                    # for networkservices.HttpFilter resources enabled by Traffic
                    # Director.
                  "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                      # YAML formatted and only contain fields defined in the protobuf identified
                      # in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                      # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                      # configuration belongs to. This name must be known to the xDS client.
                      # Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                  # this routeRule when any of thematchRules are satisfied. However predicates within
                  # a given matchRule have AND semantics. All predicates
                  # within a matchRule must match for the request to
                  # match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching
                    # requests to an HttpRouteRule. All specified criteria must
                    # be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                      # that may be part of the original URL.
                      #
                      # fullPathMatch must be from 1 to 1024 characters.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                      # corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match.
                          #
                          # For matching against the HTTP request's authority, use a headerMatch
                          # with the header name ":authority".
                          #
                          # For matching a request's method, use the headerName ":method".
                          #
                          # When the URL map is bound to a target gRPC proxy that has
                          # the validateForProxyless field set to true, only
                          # non-binary
                          # user-specified custom metadata and the `content-type` header are supported.
                          # The following transport-level headers cannot be used in header matching
                          # rules:
                          # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                          # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                          # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                          # `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a
                          # match if the preceding match criteria are met. If set to true,
                          # the headerMatch is considered a match if the preceding
                          # match criteria are NOT met.
                          #
                          # The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The
                          # match takes place whether or not the request's header has a value.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                          # specified in rangeMatch. If the header does not contain an
                          # integer, number or is empty, the match fails.
                          #
                          # For example for a range [-5, 0]
                          #
                          #
                          #       - -3 will match.
                          #       - 0 will not match.
                          #       - 0.25 will not match.
                          #       - -3someString will not match.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # rangeMatch is not supported for load balancers
                          # that have loadBalancingScheme set to EXTERNAL.
                          # within the specified integer range.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                          # For more information about regular expression syntax, see Syntax.
                          #
                          # For matching against a port specified in the HTTP request, use a
                          # headerMatch with headerName set to PORT and a regular expression that
                          # satisfies the RFC2616 Host header's port specifier.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                          #
                          # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                      # matches are case sensitive.
                      #
                      # The default value is false.
                      #
                      # ignoreCase must not be used with regexMatch.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                      # configuration to a limited set of xDS
                      # compliant clients. In their xDS requests to the load balancer, xDS clients
                      # present node
                      # metadata. When there is a match, the relevant routing configuration
                      # is made available to those proxies.
                      #
                      # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                      # the metadata. If its filterMatchCriteria is set to
                      # MATCH_ALL, then all of its filterLabels must match with
                      # corresponding labels provided in the metadata. If multiple
                      # metadata filters are specified, all of them need to be
                      # satisfied in order to be considered a match.
                      #
                      # metadataFilters specified here is applied after those
                      # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                      #
                      # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing
                        # configuration to a limited set of load balancing proxies. Proxies and
                        # sidecars involved in load balancing would typically present metadata to the
                        # load balancers that need to match criteria specified here. If a match takes
                        # place, the relevant configuration is made available to those
                        # proxies.
                        #
                        # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                        # one of thefilterLabels must match the corresponding label provided in
                        # the metadata. If its filterMatchCriteria is set to
                        # MATCH_ALL, then all of its filterLabels must match with
                        # corresponding labels provided in the metadata.
                        #
                        # An example for using metadataFilters would be: if
                        # load balancing involves
                        # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided
                          # metadata based on filterMatchCriteria
                          #
                          # This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected
                            # to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label.
                              #
                              #  The name can have a maximum length of 1024 characters and must be at
                              # least 1 character long.
                          "value": "A String", # The value of the label must match the specified value.
                              #
                              # value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                          # within the list of filterLabels and contributes toward the
                          # overall metadataFilter match.
                          #
                          #  Supported values are:
                          #
                          #    - MATCH_ANY: at least one of the filterLabels
                          #    must have a matching label in the provided metadata.
                          #    - MATCH_ALL: all filterLabels must have
                          #    matching labels in the provided metadata.
                    },
                  ],
                  "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                      # the :path header after the query string is removed.
                      #
                      # A path template pattern can include variables and wildcards.
                      # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                      # matches a single path segment, and ** that matches zero or
                      # more path segments. The pattern must follow these rules:
                      #
                      #
                      #       - The value must be between 1 and 1024 characters.
                      #       - The pattern must start with a leading slash ("/").
                      #       - No more than 5 operators (variables or wildcards) may appear in
                      #       the pattern.
                      #
                      # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                      # set.
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                      # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                      #
                      # The value must be from 1 to 1024 characters.
                      #
                      # The * character inside a prefix match is
                      # treated as a literal character, not as a wildcard.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                      # used within a matchRule.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                      # match corresponding query parameters in the request.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter exactly matches the contents of exactMatch.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                          # the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                          # request contains the query parameter, irrespective of whether the
                          # parameter has a value or not.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                          # parameter matches the regular expression specified byregexMatch. For
                          # more information about regular expression syntax, see Syntax.
                          #
                          # Only one of presentMatch, exactMatch, orregexMatch must be set.
                          #
                          # Regular expressions can only be used when the loadBalancingScheme is
                          # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                          # (regional scope) or INTERNAL_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                      # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                      # supplied with the original URL. For
                      # more information about regular expression syntax, see Syntax.
                      #
                      # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                      # specified.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                      # (regional scope) or INTERNAL_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher,
                  # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                  # of priority, from the lowest to highest number. The priority of a
                  # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                  # that matches the request is applied.
                  #
                  #
                  # You cannot configure two or more routeRules with the same priority.
                  # Priority for each rule must be set to a number from 0 to 2147483647
                  # inclusive.
                  #
                  #
                  # Priority numbers can have gaps, which enable you to add or remove rules
                  # in the future without affecting the rest of the rules. For example, 1, 2,
                  # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                  # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                  # without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer
                  # performs advanced routing actions, such as URL rewrites and header
                  # transformations, before forwarding the request to the selected backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # URL maps for classic Application Load Balancers only support
                  # the urlRewrite action within a route rule'srouteAction.
                "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                    # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                    # property must be specified. This policy cannot be specified if any target
                    # backend has Identity-Aware Proxy enabled.
                  "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                      # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                      # header names can be specified. The cache is bypassed for all `cacheMode`
                      # values.
                    "A String",
                  ],
                  "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                      # on the backend type: for Backend Services, the complete request URI is
                      # used; for Backend Buckets, the request URI is used without the protocol or
                      # host, and only query parameters known to Cloud Storage are included.
                      # Policy defined on Route Action.
                    "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                        # parameters will be included. Either specify `excludedQueryParameters`
                        # or `includedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                      "A String",
                    ],
                    "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # host is never included in a Backend Bucket's cache key. Attempting to set
                        # it on a route that points exclusively to Backend Buckets will result in a
                        # configuration error.
                    "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket, as the
                        # protocol is never included in a Backend Bucket's cache key. Attempting to
                        # set on a route that points exclusively to Backend Buckets will result in
                        # a configuration error.
                    "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                        # `includedQueryParameters` and `excludedQueryParameters`. If neither
                        # is set, the entire query string will be included. If false, the query
                        # string will be excluded from the cache key entirely.
                        #
                        # Note: This field applies to routes that use backend services. Attempting
                        # to set it on a route that points exclusively to Backend Buckets will
                        # result in a configuration error. For routes that point to a Backend
                        # Bucket, use `includedQueryParameters` to define which parameters should
                        # be part of the cache key.
                    "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                        # The name=value pair will be used in the cache key Cloud CDN generates.
                        #
                        # Note: This setting is only applicable to routes that use a Backend
                        # Service. It does not affect requests served by a Backend Bucket.
                        # Attempting to set it on a route that points exclusively to Backend
                        # Buckets will result in a configuration error. Up to 5 cookie names can be
                        # specified.
                      "A String",
                    ],
                    "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                      "A String",
                    ],
                    "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                        # parameters will be excluded. Either specify `includedQueryParameters`
                        # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                        # encoded and not treated as delimiters.
                      "A String",
                    ],
                  },
                  "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                      # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                  "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                      # content. This is used to clamp the max-age (or Expires) value sent to the
                      # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                      # is used for the response max-age directive, along with a "public"
                      # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                      # clamps the max-age from the origin (if specified), or else sets the
                      # response max-age directive to the lesser of the `clientTtl` and
                      # `defaultTtl`, and also ensures a "public" cache-control directive is
                      # present. The maximum allowed value is 31,622,400s (1 year). If not
                      # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                      # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                      # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                      # "always revalidate". The value of `defaultTtl` cannot be set to a value
                      # greater than that of `maxTtl`. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                      # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                      # accessed objects may be evicted from the cache before the defined TTL. If
                      # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                      # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                      # `USE_ORIGIN_HEADERS`.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                      # attempt to set a max-age or s-maxage higher than this, or an Expires header
                      # more than `maxTtl` seconds in the future will be capped at the value of
                      # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                      # Headers sent to the client will not be modified. Setting a TTL of "0" means
                      # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                      # Infrequently accessed objects may be evicted from the cache before the
                      # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                      # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                      # mode.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                      # to apply fine-grained caching for common errors or redirects.
                      # This can reduce the load on your origin and improve end-user
                      # experience by reducing response latency.
                      # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                      # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                      # the specified response code that lack any Cache-Control, Expires, or
                      # Pragma: no-cache directives. When the `cacheMode` is set to
                      # `FORCE_CACHE_ALL`, negative caching applies to all responses
                      # with the specified response code, and overrides any caching headers. By
                      # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                      #
                      # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                      # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                      # * 405 (Method Not Found), 501 (Not Implemented): 60s
                      #
                      # These defaults can be overridden in `negativeCachingPolicy`.
                      # If not specified, Cloud CDN applies negative caching by default.
                  "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                      # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                      # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                      # CDN's default cache TTLs. Note that when specifying an explicit
                      # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                      # all response codes that you wish to cache. Cloud CDN will not apply any
                      # default negative caching when a policy exists.
                    { # Specify CDN TTLs for response error codes.
                      "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                          # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                          # specified as values, and you cannot specify a status code more than
                          # once.
                      "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                          # corresponding status code.
                          # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                          # objects may be evicted from the cache before the defined TTL.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                    },
                  ],
                  "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                      # requests into a small number of requests to the origin. If not specified,
                      # Cloud CDN applies request coalescing by default.
                  "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                      # content with the origin, or when an error is encountered when refreshing
                      # the cache.
                      # This setting defines the default "max-stale" duration for any cached
                      # responses that do not specify a max-stale directive. Stale responses that
                      # exceed the TTL configured here will not be served. The default limit
                      # (max-stale) is 86400s (1 day), which will allow stale content to be
                      # served up to this limit beyond the max-age (or s-maxage) of a cached
                      # response.
                      # The maximum allowed value is 604800 (1 week).
                      # Set this to zero (0) to disable serve-while-stale.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                },
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                    # information about the W3C recommendation for cross-origin resource sharing
                    # (CORS), see Fetch API Living
                    # Standard.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true
                      # indicates that
                      # the actual request can include user credentials. This field translates to
                      # the Access-Control-Allow-Credentials header.
                      #
                      # Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                      # header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                      # header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                      # more information, see regular expression syntax.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      #
                      # Regular expressions can only be used when the loadBalancingScheme is
                      # set to INTERNAL_SELF_MANAGED.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                      #
                      # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, disables the CORS policy.
                      # The default value is false, which indicates that the CORS
                      # policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                      # header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                      # seconds. This field translates to the Access-Control-Max-Age
                      # header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by a load balancer on a percentage of requests before sending
                    # those requests to the backend service. Similarly requests from clients can
                    # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                    # that are configured with a fault_injection_policy if:
                    # 1. The traffic is generated by fault injection AND
                    # 2. The fault injection is not a delay fault injection.
                    # Fault injection is not supported with the classic Application Load Balancer
                    # . To see which load balancers support fault injection,
                    # see Load
                    # balancing: Routing and traffic management features.
                    # the resiliency of clients to backend service failure. As part of fault
                    # injection, when clients send requests to a backend service, delays can be
                    # introduced by the load balancer on a percentage of requests before sending
                    # those request to the backend service. Similarly requests from clients can be
                    # aborted by the load balancer for a percentage of requests.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                      # injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request.
                        #
                        # The value must be from 200 to 599 inclusive.
                        #
                        # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                        # according to this
                        # mapping table. HTTP status 200 is mapped to gRPC status
                        # UNKNOWN. Injecting an OK status is currently not supported by
                        # Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                        # that is aborted as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                      # injection, before being sent to a backend service.
                      # request to the backend service as part of fault injection.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                        # which a delay is introduced as part of fault injection.
                        #
                        # The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                    # Global EXTERNAL_MANAGED load balancer schemes.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route
                    # dynamically processes and delivers images from the network edge.
                    # Image Optimization is only available for Global External Application Load
                    # Balancers.
                    # Either Cloud CDN must be enabled on the backend service or backend bucket
                    # serving the route, or cache policy must be configured on the same route.
                  "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                    # Unlike the timeout field where the timeout duration starts
                    # from the time the request has been fully processed (known as*end-of-stream*),
                    # the duration in this field is computed from the beginning of the stream
                    # until the response has been processed, including all retries. A
                    # stream that does not complete in this duration is closed.
                    #
                    # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                    # with the route.
                    #
                    # This field is only allowed if the Url map is used with backend services
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                    # are shadowed to a separate mirrored backend service. The load balancer does
                    # not wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host / authority header is suffixed with-shadow.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # are shadowed to a separate mirrored backend service. The load balancer
                    # doesn't wait for responses from the shadow service. Before sending traffic
                    # to the shadow service, the host or authority header is suffixed with-shadow.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being
                      # mirrored to.
                      #
                      # The backend service configured for a mirroring
                      # policy must reference backends that are of the same type as the original
                      # backend service matched in the URL map.
                      #
                      # Serverless NEG backends are not currently supported as a mirrored
                      # backend service.
                  "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                      # If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                      #
                      # If not specified, will use the timeout set in theHttpRouteAction field.
                      # If timeout in the HttpRouteAction field is not set, this field
                      # uses the largest timeout
                      # among all backend services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                      # values are:
                      #
                      #    - 5xx: retry is attempted if the instance or endpoint
                      #    responds with any 5xx response code, or if the instance or
                      #    endpoint does not respond at all. For example, disconnects, reset, read
                      #    timeout, connection failure, and refused streams.
                      #    - gateway-error: Similar to 5xx, but only
                      #    applies to response codes 502, 503 or504.
                      #    - connect-failure: a retry is attempted on failures
                      #    connecting to the instance or endpoint. For example, connection
                      #    timeouts.
                      #    - retriable-4xx: a retry is attempted if the instance
                      #    or endpoint responds with a 4xx response code.
                      #    The only error that you can retry is error code 409.
                      #    - refused-stream: a retry is attempted if the instance
                      #    or endpoint resets the stream with a REFUSED_STREAM error
                      #    code. This reset type indicates that it is safe to retry.
                      #    - cancelled: a retry is attempted if the gRPC status
                      #    code in the response header is set to cancelled.
                      #    - deadline-exceeded: a retry is attempted if the gRPC
                      #    status code in the response header is set todeadline-exceeded.
                      #    - internal: a retry is attempted if the gRPC
                      #    status code in the response header is set tointernal.
                      #    - resource-exhausted: a retry is attempted if the gRPC
                      #    status code in the response header is set toresource-exhausted.
                      #    - unavailable: a retry is attempted if the gRPC
                      #    status code in the response header is set tounavailable.
                      #
                      # Only the following codes are supported when the URL map is bound to
                      # target gRPC proxy that has validateForProxyless field set to true.
                      #
                      #    - cancelled
                      #    - deadline-exceeded
                      #    - internal
                      #    - resource-exhausted
                      #    - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                    # time the request has been fully processed (known as *end-of-stream*)
                    # up until the response has been processed. Timeout includes
                    # all retries.
                    #
                    # If not specified, this field uses the largest timeout among all backend
                    # services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                    # to the matched service.
                    #
                    #  urlRewrite is the only action supported in UrlMaps
                    # for classic Application Load Balancers.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # backend service.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                      # host header is replaced with contents of hostRewrite.
                      #
                      # The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                      # matching portion of the request's path is replaced bypathPrefixRewrite.
                      #
                      # The value must be from 1 to 1024 characters.
                  "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                      # header) using the HTTP template syntax.
                      #
                      # A corresponding
                      # path_template_match must be specified. Any template variables must exist in
                      # the path_template_match field.
                      #
                      #
                      #       - -At least one variable must be specified in the path_template_match
                      #       field
                      #    - You can omit variables from the rewritten URL
                      #       - The * and ** operators cannot be matched
                      #       unless they have a corresponding variable name - e.g.
                      #       {format=*} or {var=**}.
                      #
                      # For example, a path_template_match of /static/{format=**}
                      # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                      # rewrite, so that /{country}/{format}/{suffix=**} can be
                      # rewritten as /content/{format}/{country}/{suffix}.
                      #
                      # At least
                      # one non-empty routeRules[].matchRules[].path_template_match is
                      # required.
                      #
                      # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                  "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                    "pathPattern": "A String", # The regular expression used to match against the URL path.
                        # It uses RE2 syntax with the following constraints:
                        #
                        #
                        #      - Any single character operators
                        #      - Groups are allowed to have only submatch operator inside
                        #      - Groups are allowed only without any char repetition, e.g.
                        #      .*
                        #      - Any char repetition, e.g. .*, is
                        #      only allowed to be used in a single regex together with:
                        #
                        #
                        #             - Empty string operators
                        #             - Other repetitions
                        #             - Ranges
                        #             - Repetitions of ranges
                        #
                        #
                        #      - Ranges are only allowed to have:
                        #
                        #
                        #             - Character range
                        #             - Digits range
                        #             - Symbols listed in characters allowed for ranges
                    "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                        # the path.
                  },
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                    # occurs. The weights determine the fraction of traffic that flows to
                    # their corresponding backend service. If all traffic needs to
                    # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                    #
                    # After a backend service is identified and before forwarding
                    # the request to
                    # the backend service, advanced routing actions such as URL rewrites and
                    # header transformations are applied depending on additional settings
                    # specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in
                      # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                      # multiple backend services. The volume of traffic for each
                      # backend service is proportional to the weight specified
                      # in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService
                        # resource. Before
                        # forwarding the request to backendService, the load balancer
                        # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                        # effect for the selected backendService.
                        #
                        # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                        #
                        # headerAction is not supported for load balancers that have
                        # their loadBalancingScheme set to EXTERNAL.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                        # the request is passed along to the selected backendService.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                          # client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values
                              # that already
                              # exist for the header. If true, headerValue is set for the
                              # header, discarding any values that were set for that header.
                              #
                              # The default value is true,
                              # unless a variable is present in headerValue,
                              # in which case the default value is false.
                              # .
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                          # response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                        # computed asweight / (sum of all weightedBackendService weights in routeAction).
                        #
                        # The selection of a backend service is determined only for new traffic.
                        # Once a user's request has been directed to a backend service,
                        # subsequent requests are sent to the same backend service as
                        # determined by the backend service's session affinity policy.
                        # Don't configure session affinity if you're using weighted traffic
                        # splitting. If you do, the weighted traffic splitting configuration takes
                        # precedence.
                        #
                        # The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic
                  # is directed if this rule is matched. If routeAction is
                  # also specified, advanced routing actions, such as URL rewrites,
                  # take effect before sending the request to the backend.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                  # specified by urlRedirect.
                  #
                  #
                  # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                  #
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                    # was supplied in the request.
                    #
                    # The value must be from 1 to 255
                    # characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                    # set to HTTPS.
                    # If set to false, the URL scheme of the redirected request
                    # remains the same as that of the request.
                    #
                    # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                    #
                    # The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                    # that was supplied in the request.
                    #
                    # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                    # the HttpRouteRuleMatch, retaining the remaining portion
                    # of the URL before redirecting the request.
                    #
                    # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                    # supplied, the path of the original request is used for the redirect.
                    #
                    # The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                    #
                    # Supported values are:
                    #
                    #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                    #    to 301.
                    #    - FOUND, which corresponds to 302.
                    #    - SEE_OTHER which corresponds to 303.
                    #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                    #    method is retained.
                    #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                    #    method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                    # URL is
                    # removed before redirecting the request. If set to false, the
                    # query portion of the original URL is retained.
                    #
                    # The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
          # This field is not applicable to global URL maps.
          # You must specify this field as part of the HTTP request URL. It is
          # not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
        "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
          "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
          "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
        },
      },
      "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
          # maximum of 100 tests per UrlMap.
          #
          # Not supported when the URL map is bound to a target gRPC proxy that
          # has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
              # routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
              # containing the scheme, host, path and query parameters.
              #
              # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
              # the load balancer to backends. For rules with urlRewrite,
              # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
              #
              # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
              # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
              # If urlRedirect specifies strip_query, the test
              # passes only if expectedOutputUrl does not contain any query
              # parameters.
              #
              # expectedOutputUrl is optional whenservice is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
              # load balancer's redirect response.
              #
              # expectedRedirectResponseCode cannot be set whenservice is set.
          "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
              # being tested.
              # [Deprecated] This field is deprecated.
              # Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains
              # a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header,
              # then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource
              # the given URL should be mapped to.
              #
              # The service field cannot
              # be set if expectedRedirectResponseCode is set.
        },
      ],
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so
    that if you must retry your request, the server will know to ignore the
    request if it has already been completed.

    For example, consider a situation where you make an initial request and
    the request times out. If you make the request again with the same
    request ID, the server can check if original operation with the same
    request ID was received, and if so, will ignore the second request. This
    prevents clients from accidentally creating duplicate commitments.

    The request ID must be
    a valid UUID with the exception that zero UUID is not supported
    (00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource.
        #
        # Google Compute Engine has three Operation resources:
        #
        # * [Global](/compute/docs/reference/rest/alpha/globalOperations)
        # * [Regional](/compute/docs/reference/rest/alpha/regionOperations)
        # * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations)
        #
        # You can use an operation resource to manage asynchronous API requests.
        # For more information, readHandling
        # API responses.
        #
        # Operations can be global, regional or zonal.
        #
        #    - For global operations, use the `globalOperations`
        #    resource.
        #    - For regional operations, use the
        #    `regionOperations` resource.
        #    - For zonal operations, use
        #    the `zoneOperations` resource.
        #
        #
        #
        # For more information, read
        # Global, Regional, and Zonal Resources.
        #
        # Note that completed Operation resources have a limited
        # retention period.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request.
          # Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is
          # set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is inRFC3339
          # text format.
      "error": { # [Output Only] If errors are generated during processing of the operation,
          # this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this
            # operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error
                # details. There is a set of defined message types to use for providing
                # details.The syntax depends on the error code. For example,
                # QuotaExceededInfo will have details when the error code is
                # QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details.
                    #
                    # Example of an error when contacting the "pubsub.googleapis.com" API when it
                    # is not enabled:
                    #
                    #     { "reason": "API_DISABLED"
                    #       "domain": "googleapis.com"
                    #       "metadata": {
                    #         "resource": "projects/123",
                    #         "service": "pubsub.googleapis.com"
                    #       }
                    #     }
                    #
                    # This response indicates that the pubsub.googleapis.com API is not enabled.
                    #
                    # Example of an error that is returned when attempting to create a Spanner
                    # instance in a region that is out of stock:
                    #
                    #     { "reason": "STOCKOUT"
                    #       "domain": "spanner.googleapis.com",
                    #       "metadata": {
                    #         "availableRegions": "us-central1,us-east2"
                    #       }
                    #     }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain
                      # is typically the registered service name of the tool or product that
                      # generates the error. Example: "pubsub.googleapis.com". If the error is
                      # generated by some common infrastructure, the error domain must be a
                      # globally unique value that identifies the infrastructure. For Google API
                      # infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error.
                      #
                      # Keys must match a regular expression of `a-z+` but should
                      # ideally be lowerCamelCase. Also, they must be limited to 64 characters in
                      # length. When identifying the current value of an exceeded limit, the units
                      # should be contained in the key, not the value.  For example, rather than
                      # `{"instanceLimit": "100/request"}`, should be returned as,
                      # `{"instanceLimitPerRequest": "100"}`, if the client exceeds the number of
                      # instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the
                      # proximate cause of the error. Error reasons are unique within a particular
                      # domain of errors. This should be at most 63 characters and match a
                      # regular expression of `A-Z+[A-Z0-9]`, which represents
                      # UPPER_SNAKE_CASE.
                },
                "help": { # Provides links to documentation or for performing an out of band action.
                    #
                    # For example, if a quota check failed with an error indicating the calling
                    # project hasn't enabled the accessed service, this can contain a URL pointing
                    # directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user
                    # which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at
                      # https://www.rfc-editor.org/rfc/bcp/bcp47.txt.
                      # Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "futureLimit": 3.14, # Future quota limit being rolled out. The limit's unit depends on the quota
                      #  type or metric.
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type
                      # or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                  "rolloutStatus": "A String", # Rollout status of the future quota limit.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error.
                # This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "getVersionOperationMetadata": {
        "inlineSbomInfo": {
          "currentComponentVersions": { # A mapping of components to their currently-applied versions or other
              # appropriate identifiers.
            "a_key": "A String",
          },
          "targetComponentVersions": { # A mapping of components to their target versions or other appropriate
              # identifiers.
            "a_key": "A String",
          },
        },
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error
          # message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error
          # status code that was returned. For example, a `404` means the
          # resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is
          # defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested.
          # This value is inRFC3339
          # text format.
      "instancesBulkInsertOperationMetadata": {
        "perLocationStatus": { # Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "createdVmCount": 42, # [Output Only] Count of VMs successfully created so far.
            "deletedVmCount": 42, # [Output Only] Count of VMs that got deleted during rollback.
            "failedToCreateVmCount": 42, # [Output Only] Count of VMs that started creating but encountered an
                # error.
            "status": "A String", # [Output Only] Creation status of BulkInsert operation - information
                # if the flow is rolling forward or rolling back.
            "targetVmCount": 42, # [Output Only] Count of VMs originally planned to be created.
          },
        },
      },
      "kind": "compute#operation", # Output only. [Output Only] Type of the resource. Always `compute#operation` for
          # Operation resources.
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # Output only. [Output Only] An ID that represents a group of operations, such as when a
          # group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`,
          # `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100.
          # There is no requirement that this be linear or support any granularity of
          # operations. This should not be used to guess when the operation will be
          # complete. This number should monotonically increase as the operation
          # progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only
          # applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # Output only. [Output Only] Server-defined URL for this resource with the resource id.
      "setCommonInstanceMetadataOperationMetadata": { # Output only. [Output Only] If the operation is for projects.setCommonInstanceMetadata,
          # this field will contain information on all underlying zonal actions and
          # their state.
        "clientOperationId": "A String", # [Output Only] The client operation id.
        "perLocationOperations": { # [Output Only] Status information per location (location name is key).
            # Example key: zones/us-central1-a
          "a_key": {
            "error": { # The `Status` type defines a logical error model that is suitable for # [Output Only] If state is `ABANDONED` or `FAILED`, this field is
                # populated.
                # different programming environments, including REST APIs and RPC APIs. It is
                # used by [gRPC](https://github.com/grpc). Each `Status` message contains
                # three pieces of data: error code, error message, and error details.
                #
                # You can find out more about this error model and how to work with it in the
                # [API Design Guide](https://cloud.google.com/apis/design/errors).
              "code": 42, # The status code, which should be an enum value of google.rpc.Code.
              "details": [ # A list of messages that carry the error details.  There is a common set of
                  # message types for APIs to use.
                {
                  "a_key": "", # Properties of the object. Contains field @type with type URL.
                },
              ],
              "message": "A String", # A developer-facing error message, which should be in English. Any
                  # user-facing error message should be localized and sent in the
                  # google.rpc.Status.details field, or localized by the client.
            },
            "state": "A String", # [Output Only] Status of the action, which can be one of the following:
                # `PROPAGATING`, `PROPAGATED`, `ABANDONED`, `FAILED`, or `DONE`.
          },
        },
      },
      "startTime": "A String", # [Output Only] The time that this operation was started by the server.
          # This value is inRFC3339
          # text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the
          # following:
          # `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the
          # operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation
          # of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For
          # operations related to creating a snapshot, this points to the disk
          # that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example:
          # `user@example.com` or
          # `alice_smith_identifier (global/workforcePools/example-com-us-employees)`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the
          # operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute
              # Engine returns NO_RESULTS_ON_PAGE if there
              # are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key:
              # value format. For example:
              #
              # "data": [
              #   {
              #    "key": "scope",
              #    "value": "zones/us-east1-d"
              #   }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being
                  # returned. For example, for warnings where there are no results in a list
                  # request for a particular zone, this key might be scope and
                  # the key value might be the zone name. Other examples might be a key
                  # indicating a deprecated resource and a suggested replacement, or a
                  # warning about invalid network settings (for example, if an instance
                  # attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only
          # applicable when performing per-zone operations.
    }

`validate(project, urlMap, body=None, x__xgafv=None)`

    Runs static validation for the UrlMap. In particular, the tests of the
    provided UrlMap will be run. Calling this method does NOT create the
    UrlMap.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to be validated as. (required)
      body: object, The request body.
        The object takes the form of:

    {
      "loadBalancingSchemes": [ # Specifies the load balancer type(s) this validation request is for. UseEXTERNAL_MANAGED for global external Application Load
          # Balancers and regional external Application Load Balancers.
          # Use EXTERNAL for classic Application Load Balancers.
          #
          # Use INTERNAL_MANAGED for internal Application Load Balancers. For more
          # information, refer to Choosing
          # a load balancer.
          #
          # If unspecified, the load balancing scheme will be inferred from the backend
          # service resources this URL map references. If that can not be inferred (for
          # example, this URL map only references backend buckets, or this Url map is
          # for rewrites and redirects only and doesn't reference any backends),EXTERNAL will be used as the default type.
          #
          # If specified, the scheme(s) must not conflict with the load balancing
          # scheme of the backend service resources this Url map references.
        "A String",
      ],
      "resource": { # Represents a URL Map resource. # Content of the UrlMap to be validated.
          #
          # Compute Engine has two URL Map resources:
          #
          # * [Global](/compute/docs/reference/rest/alpha/urlMaps)
          # * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps)
          #
          # A URL map resource is a component of certain types of cloud load balancers
          # and Traffic Director:
          #
          # * urlMaps are used by global external Application Load
          # Balancers, classic Application Load Balancers, and cross-region internal
          # Application Load Balancers.
          # * regionUrlMaps are used by internal Application Load Balancers,
          # regional external Application Load Balancers and regional internal
          # Application Load Balancers.
          #
          # For a list of supported URL map features by the load balancer type, see the
          # Load balancing features: Routing and traffic management table.
          #
          # For a list of supported URL map features for Traffic Director, see the
          # Traffic Director features: Routing and traffic management table.
          #
          # This resource defines mappings from hostnames and URL paths to either a
          # backend service or a backend bucket.
          #
          # To use the global urlMaps resource, the backend service must
          # have a loadBalancingScheme of either EXTERNAL,EXTERNAL_MANAGED, or INTERNAL_SELF_MANAGED. To use
          # the regionUrlMaps resource, the backend service must have aloadBalancingScheme of INTERNAL_MANAGED. For more
          # information, read URL
          # Map Concepts.
        "creationTimestamp": "A String", # Output only. [Output Only] Creation timestamp inRFC3339
            # text format.
        "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
            # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
            #
            # This policy takes
            # effect at the load balancer level and applies only when no policy has been
            # defined for the error code at lower levels like PathMatcher, RouteRule and
            # PathRule within this UrlMap.
            #
            # For example, consider a UrlMap with the
            # following configuration:
            #
            #
            #      - defaultCustomErrorResponsePolicy containing policies for
            #      responding to 5xx and 4xx errors
            #      - A PathMatcher configured for *.example.com has
            #      defaultCustomErrorResponsePolicy for 4xx.
            #
            # If a request for http://www.example.com/ encounters a404, the policy inpathMatcher.defaultCustomErrorResponsePolicy will be enforced.
            # When the request for http://www.example.com/ encounters a502, the policy inUrlMap.defaultCustomErrorResponsePolicy will be enforced. When
            # a request that does not match any host in *.example.com such
            # as http://www.myotherexample.com/, encounters a404, UrlMap.defaultCustomErrorResponsePolicy
            # takes effect.
            #
            # When used in conjunction withdefaultRouteAction.retryPolicy, retries take precedence. Only
            # once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
            # a retry, if load balancer is successful in reaching the
            # service, the defaultCustomErrorResponsePolicy is ignored and
            # the response from the service is returned to the client.
            #
            # defaultCustomErrorResponsePolicy is supported only for
            # global external Application Load Balancers.
            # backend service or backend bucket responds with an error.
          "errorResponseRules": [ # Specifies rules for returning error responses.
              #
              # In a given policy, if you specify rules for both a range of error codes
              # as well as rules for specific error codes then rules with specific error
              # codes have a higher priority. For example, assume that you configure a rule
              # for 401 (Un-authorized) code, and another for all 4 series
              # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
              # However if the backend service returns a 403, the rule for4xx takes effect.
            { # Specifies the mapping between the response code that will be returned along
                # with the custom error content and the response code returned by the backend
                # service.
              "matchResponseCodes": [ # Valid values include:
                  #
                  #
                  #      - A number between 400 and 599: For example
                  #      401 or 503, in which case the load balancer
                  #      applies the policy if the error code exactly matches this value.
                  #      - 5xx: Load Balancer will apply the policy if the
                  #      backend service responds with any response code in the range of
                  #      500 to 599.
                  #    - 4xx: Load
                  #      Balancer will apply the policy if the backend service responds with any
                  #      response code in the range of 400 to
                  #      499.
                  #
                  # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                "A String",
              ],
              "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                  # error content. If overrideResponseCode is not supplied, the
                  # same response code returned by the original backend bucket or backend
                  # service is returned to the client.
              "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                  #
                  # path must start
                  # with a leading slash. path cannot have trailing slashes.
                  #
                  # If the file is not available in backendBucket  or the
                  # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                  #
                  # The value must
                  # be from 1 to 1024 characters
            },
          ],
          "errorService": "A String", # The full or partial URL to the BackendBucket resource that
              # contains the custom error content. Examples are:
              #
              #
              #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
              #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
              #      - global/backendBuckets/myBackendBucket
              #
              # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
              # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
              #
              # If load balancer cannot reach
              # the backendBucket, a simple Not Found Error will
              # be returned, with the original response code (oroverrideResponseCode if configured).
              #
              # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
        },
        "defaultRouteAction": { # defaultRouteAction takes effect when none of the
            # hostRules match. The load balancer performs advanced routing
            # actions, such as URL rewrites and header transformations, before forwarding
            # the request to the selected backend.
            #
            #
            # Only one of defaultUrlRedirect, defaultService
            # or defaultRouteAction.weightedBackendService can be set.
            #
            #
            #  URL maps for classic Application Load Balancers only support
            # the urlRewrite action within defaultRouteAction.
            #
            #
            # defaultRouteAction has no effect when the URL map is bound
            # to a target gRPC proxy that has the validateForProxyless field
            # set to true.
          "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
              # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
              # property must be specified. This policy cannot be specified if any target
              # backend has Identity-Aware Proxy enabled.
            "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                # header names can be specified. The cache is bypassed for all `cacheMode`
                # values.
              "A String",
            ],
            "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                # on the backend type: for Backend Services, the complete request URI is
                # used; for Backend Buckets, the request URI is used without the protocol or
                # host, and only query parameters known to Cloud Storage are included.
                # Policy defined on Route Action.
              "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                  # parameters will be included. Either specify `excludedQueryParameters`
                  # or `includedQueryParameters`, not both. '&' and '=' will be percent
                  # encoded and not treated as delimiters.
                  #
                  # Note: This field applies to routes that use backend services. Attempting
                  # to set it on a route that points exclusively to Backend Buckets will
                  # result in a configuration error. For routes that point to a Backend
                  # Bucket, use `includedQueryParameters` to define which parameters should
                  # be part of the cache key.
                "A String",
              ],
              "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                  #
                  # Note: This setting is only applicable to routes that use a Backend
                  # Service. It does not affect requests served by a Backend Bucket, as the
                  # host is never included in a Backend Bucket's cache key. Attempting to set
                  # it on a route that points exclusively to Backend Buckets will result in a
                  # configuration error.
              "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                  #
                  # Note: This setting is only applicable to routes that use a Backend
                  # Service. It does not affect requests served by a Backend Bucket, as the
                  # protocol is never included in a Backend Bucket's cache key. Attempting to
                  # set on a route that points exclusively to Backend Buckets will result in
                  # a configuration error.
              "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                  # `includedQueryParameters` and `excludedQueryParameters`. If neither
                  # is set, the entire query string will be included. If false, the query
                  # string will be excluded from the cache key entirely.
                  #
                  # Note: This field applies to routes that use backend services. Attempting
                  # to set it on a route that points exclusively to Backend Buckets will
                  # result in a configuration error. For routes that point to a Backend
                  # Bucket, use `includedQueryParameters` to define which parameters should
                  # be part of the cache key.
              "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                  # The name=value pair will be used in the cache key Cloud CDN generates.
                  #
                  # Note: This setting is only applicable to routes that use a Backend
                  # Service. It does not affect requests served by a Backend Bucket.
                  # Attempting to set it on a route that points exclusively to Backend
                  # Buckets will result in a configuration error. Up to 5 cookie names can be
                  # specified.
                "A String",
              ],
              "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                "A String",
              ],
              "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                  # parameters will be excluded. Either specify `includedQueryParameters`
                  # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                  # encoded and not treated as delimiters.
                "A String",
              ],
            },
            "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
            "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                # content. This is used to clamp the max-age (or Expires) value sent to the
                # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                # is used for the response max-age directive, along with a "public"
                # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                # clamps the max-age from the origin (if specified), or else sets the
                # response max-age directive to the lesser of the `clientTtl` and
                # `defaultTtl`, and also ensures a "public" cache-control directive is
                # present. The maximum allowed value is 31,622,400s (1 year). If not
                # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                # `USE_ORIGIN_HEADERS`.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                # "always revalidate". The value of `defaultTtl` cannot be set to a value
                # greater than that of `maxTtl`. When the `cacheMode` is set to
                # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                # accessed objects may be evicted from the cache before the defined TTL. If
                # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                # `USE_ORIGIN_HEADERS`.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                # attempt to set a max-age or s-maxage higher than this, or an Expires header
                # more than `maxTtl` seconds in the future will be capped at the value of
                # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                # Headers sent to the client will not be modified. Setting a TTL of "0" means
                # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                # Infrequently accessed objects may be evicted from the cache before the
                # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                # mode.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                # to apply fine-grained caching for common errors or redirects.
                # This can reduce the load on your origin and improve end-user
                # experience by reducing response latency.
                # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                # the specified response code that lack any Cache-Control, Expires, or
                # Pragma: no-cache directives. When the `cacheMode` is set to
                # `FORCE_CACHE_ALL`, negative caching applies to all responses
                # with the specified response code, and overrides any caching headers. By
                # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                #
                # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                # * 405 (Method Not Found), 501 (Not Implemented): 60s
                #
                # These defaults can be overridden in `negativeCachingPolicy`.
                # If not specified, Cloud CDN applies negative caching by default.
            "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                # CDN's default cache TTLs. Note that when specifying an explicit
                # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                # all response codes that you wish to cache. Cloud CDN will not apply any
                # default negative caching when a policy exists.
              { # Specify CDN TTLs for response error codes.
                "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                    # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                    # specified as values, and you cannot specify a status code more than
                    # once.
                "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                    # corresponding status code.
                    # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                    # objects may be evicted from the cache before the defined TTL.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
              },
            ],
            "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                # requests into a small number of requests to the origin. If not specified,
                # Cloud CDN applies request coalescing by default.
            "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                # content with the origin, or when an error is encountered when refreshing
                # the cache.
                # This setting defines the default "max-stale" duration for any cached
                # responses that do not specify a max-stale directive. Stale responses that
                # exceed the TTL configured here will not be served. The default limit
                # (max-stale) is 86400s (1 day), which will allow stale content to be
                # served up to this limit beyond the max-age (or s-maxage) of a cached
                # response.
                # The maximum allowed value is 604800 (1 week).
                # Set this to zero (0) to disable serve-while-stale.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
          },
          "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
              # information about the W3C recommendation for cross-origin resource sharing
              # (CORS), see Fetch API Living
              # Standard.
              #
              # Not supported when the URL map is bound to a target gRPC proxy.
              # information about the W3C recommendation for cross-origin resource sharing
              # (CORS), see Fetch API Living
              # Standard.
            "allowCredentials": True or False, # In response to a preflight request, setting this to true
                # indicates that
                # the actual request can include user credentials. This field translates to
                # the Access-Control-Allow-Credentials header.
                #
                # Default is false.
            "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                # header.
              "A String",
            ],
            "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                # header.
              "A String",
            ],
            "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                # more information, see regular expression syntax.
                #
                # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                #
                # Regular expressions can only be used when the loadBalancingScheme is
                # set to INTERNAL_SELF_MANAGED.
              "A String",
            ],
            "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                #
                # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
              "A String",
            ],
            "disabled": True or False, # If true, disables the CORS policy.
                # The default value is false, which indicates that the CORS
                # policy is in effect.
            "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                # header.
              "A String",
            ],
            "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                # seconds. This field translates to the Access-Control-Max-Age
                # header.
          },
          "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
              # the resiliency of clients to backend service failure. As part of fault
              # injection, when clients send requests to a backend service, delays can be
              # introduced by a load balancer on a percentage of requests before sending
              # those requests to the backend service. Similarly requests from clients can
              # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
              # that are configured with a fault_injection_policy if:
              # 1. The traffic is generated by fault injection AND
              # 2. The fault injection is not a delay fault injection.
              # Fault injection is not supported with the classic Application Load Balancer
              # . To see which load balancers support fault injection,
              # see Load
              # balancing: Routing and traffic management features.
              # the resiliency of clients to backend service failure. As part of fault
              # injection, when clients send requests to a backend service, delays can be
              # introduced by the load balancer on a percentage of requests before sending
              # those request to the backend service. Similarly requests from clients can be
              # aborted by the load balancer for a percentage of requests.
            "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                # injection.
              "httpStatus": 42, # The HTTP status code used to abort the request.
                  #
                  # The value must be from 200 to 599 inclusive.
                  #
                  # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                  # according to this
                  # mapping table. HTTP status 200 is mapped to gRPC status
                  # UNKNOWN. Injecting an OK status is currently not supported by
                  # Traffic Director.
              "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                  # that is aborted as part of fault injection.
                  #
                  # The value must be from 0.0 to 100.0 inclusive.
            },
            "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                # injection, before being sent to a backend service.
                # request to the backend service as part of fault injection.
              "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                  # which a delay is introduced as part of fault injection.
                  #
                  # The value must be from 0.0 to 100.0 inclusive.
            },
          },
          "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
              # Global EXTERNAL_MANAGED load balancer schemes.
              # Either Cloud CDN must be enabled on the backend service or backend bucket
              # serving the route, or cache policy must be configured on the same route
              # dynamically processes and delivers images from the network edge.
              # Image Optimization is only available for Global External Application Load
              # Balancers.
              # Either Cloud CDN must be enabled on the backend service or backend bucket
              # serving the route, or cache policy must be configured on the same route.
            "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
          },
          "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
              # Unlike the timeout field where the timeout duration starts
              # from the time the request has been fully processed (known as*end-of-stream*),
              # the duration in this field is computed from the beginning of the stream
              # until the response has been processed, including all retries. A
              # stream that does not complete in this duration is closed.
              #
              # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
              # with the route.
              #
              # This field is only allowed if the Url map is used with backend services
              # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
              # are shadowed to a separate mirrored backend service. The load balancer does
              # not wait for responses from the shadow service. Before sending traffic
              # to the shadow service, the host / authority header is suffixed with-shadow.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has the validateForProxyless field set to true.
              # are shadowed to a separate mirrored backend service. The load balancer
              # doesn't wait for responses from the shadow service. Before sending traffic
              # to the shadow service, the host or authority header is suffixed with-shadow.
            "backendService": "A String", # The full or partial URL to the BackendService resource being
                # mirrored to.
                #
                # The backend service configured for a mirroring
                # policy must reference backends that are of the same type as the original
                # backend service matched in the URL map.
                #
                # Serverless NEG backends are not currently supported as a mirrored
                # backend service.
            "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
          },
          "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
            "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                # If not specified, defaults to 1.
            "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                #
                # If not specified, will use the timeout set in theHttpRouteAction field.
                # If timeout in the HttpRouteAction field is not set, this field
                # uses the largest timeout
                # among all backend services associated with the route.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has the validateForProxyless field set to true.
                # as a count of seconds and fractions of seconds at nanosecond
                # resolution. It is independent of any calendar and concepts like "day"
                # or "month". Range is approximately 10,000 years.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                  # Durations less than one second are represented with a 0
                  # `seconds` field and a positive `nanos` field. Must be from 0
                  # to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                  # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                  # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                # values are:
                #
                #    - 5xx: retry is attempted if the instance or endpoint
                #    responds with any 5xx response code, or if the instance or
                #    endpoint does not respond at all. For example, disconnects, reset, read
                #    timeout, connection failure, and refused streams.
                #    - gateway-error: Similar to 5xx, but only
                #    applies to response codes 502, 503 or504.
                #    - connect-failure: a retry is attempted on failures
                #    connecting to the instance or endpoint. For example, connection
                #    timeouts.
                #    - retriable-4xx: a retry is attempted if the instance
                #    or endpoint responds with a 4xx response code.
                #    The only error that you can retry is error code 409.
                #    - refused-stream: a retry is attempted if the instance
                #    or endpoint resets the stream with a REFUSED_STREAM error
                #    code. This reset type indicates that it is safe to retry.
                #    - cancelled: a retry is attempted if the gRPC status
                #    code in the response header is set to cancelled.
                #    - deadline-exceeded: a retry is attempted if the gRPC
                #    status code in the response header is set todeadline-exceeded.
                #    - internal: a retry is attempted if the gRPC
                #    status code in the response header is set tointernal.
                #    - resource-exhausted: a retry is attempted if the gRPC
                #    status code in the response header is set toresource-exhausted.
                #    - unavailable: a retry is attempted if the gRPC
                #    status code in the response header is set tounavailable.
                #
                # Only the following codes are supported when the URL map is bound to
                # target gRPC proxy that has validateForProxyless field set to true.
                #
                #    - cancelled
                #    - deadline-exceeded
                #    - internal
                #    - resource-exhausted
                #    - unavailable
              "A String",
            ],
          },
          "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
              # time the request has been fully processed (known as *end-of-stream*)
              # up until the response has been processed. Timeout includes
              # all retries.
              #
              # If not specified, this field uses the largest timeout among all backend
              # services associated with the route.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has validateForProxyless field set to true.
              # as a count of seconds and fractions of seconds at nanosecond
              # resolution. It is independent of any calendar and concepts like "day"
              # or "month". Range is approximately 10,000 years.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                # Durations less than one second are represented with a 0
                # `seconds` field and a positive `nanos` field. Must be from 0
                # to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
              # to the matched service.
              #
              #  urlRewrite is the only action supported in UrlMaps
              # for classic Application Load Balancers.
              #
              # Not supported when the URL map is bound to a target gRPC proxy that
              # has the validateForProxyless field set to true.
              # backend service.
            "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                # host header is replaced with contents of hostRewrite.
                #
                # The value must be from 1 to 255 characters.
            "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                # matching portion of the request's path is replaced bypathPrefixRewrite.
                #
                # The value must be from 1 to 1024 characters.
            "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                # header) using the HTTP template syntax.
                #
                # A corresponding
                # path_template_match must be specified. Any template variables must exist in
                # the path_template_match field.
                #
                #
                #       - -At least one variable must be specified in the path_template_match
                #       field
                #    - You can omit variables from the rewritten URL
                #       - The * and ** operators cannot be matched
                #       unless they have a corresponding variable name - e.g.
                #       {format=*} or {var=**}.
                #
                # For example, a path_template_match of /static/{format=**}
                # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                # rewrite, so that /{country}/{format}/{suffix=**} can be
                # rewritten as /content/{format}/{country}/{suffix}.
                #
                # At least
                # one non-empty routeRules[].matchRules[].path_template_match is
                # required.
                #
                # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
            "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
              "pathPattern": "A String", # The regular expression used to match against the URL path.
                  # It uses RE2 syntax with the following constraints:
                  #
                  #
                  #      - Any single character operators
                  #      - Groups are allowed to have only submatch operator inside
                  #      - Groups are allowed only without any char repetition, e.g.
                  #      .*
                  #      - Any char repetition, e.g. .*, is
                  #      only allowed to be used in a single regex together with:
                  #
                  #
                  #             - Empty string operators
                  #             - Other repetitions
                  #             - Ranges
                  #             - Repetitions of ranges
                  #
                  #
                  #      - Ranges are only allowed to have:
                  #
                  #
                  #             - Character range
                  #             - Digits range
                  #             - Symbols listed in characters allowed for ranges
              "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                  # the path.
            },
          },
          "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
              # occurs. The weights determine the fraction of traffic that flows to
              # their corresponding backend service. If all traffic needs to
              # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
              #
              # After a backend service is identified and before forwarding
              # the request to
              # the backend service, advanced routing actions such as URL rewrites and
              # header transformations are applied depending on additional settings
              # specified in this HttpRouteAction.
            { # In contrast to a single BackendService in
                # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                # multiple backend services. The volume of traffic for each
                # backend service is proportional to the weight specified
                # in each WeightedBackendService
              "backendService": "A String", # The full or partial URL to the default BackendService
                  # resource. Before
                  # forwarding the request to backendService, the load balancer
                  # applies any relevant headerActions specified as part of thisbackendServiceWeight.
              "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                  # effect for the selected backendService.
                  #
                  # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                  #
                  # headerAction is not supported for load balancers that have
                  # their loadBalancingScheme set to EXTERNAL.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # the request is passed along to the selected backendService.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                    # client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values
                        # that already
                        # exist for the header. If true, headerValue is set for the
                        # header, discarding any values that were set for that header.
                        #
                        # The default value is true,
                        # unless a variable is present in headerValue,
                        # in which case the default value is false.
                        # .
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                    # response before sending the response back to the client.
                  "A String",
                ],
              },
              "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                  # computed asweight / (sum of all weightedBackendService weights in routeAction).
                  #
                  # The selection of a backend service is determined only for new traffic.
                  # Once a user's request has been directed to a backend service,
                  # subsequent requests are sent to the same backend service as
                  # determined by the backend service's session affinity policy.
                  # Don't configure session affinity if you're using weighted traffic
                  # splitting. If you do, the weighted traffic splitting configuration takes
                  # precedence.
                  #
                  # The value must be from 0 to 1000.
            },
          ],
        },
        "defaultService": "A String", # The full or partial URL of the defaultService resource to
            # which traffic is directed if none of the hostRules match.
            # If defaultRouteAction is also specified, advanced
            # routing actions, such as URL rewrites, take effect before sending the
            # request to the backend.
            #
            #
            # Only one of defaultUrlRedirect, defaultService
            # or defaultRouteAction.weightedBackendService can be set.
            #
            #
            # defaultService has no effect when the URL map is bound
            # to a target gRPC proxy that has the validateForProxyless field
            # set to true.
        "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request
            # is redirected to a URL specified by defaultUrlRedirect.
            #
            #
            # Only one of defaultUrlRedirect, defaultService
            # or defaultRouteAction.weightedBackendService can be set.
            #
            #
            # Not supported when the URL map is bound to a target gRPC proxy.
          "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
              # was supplied in the request.
              #
              # The value must be from 1 to 255
              # characters.
          "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
              # set to HTTPS.
              # If set to false, the URL scheme of the redirected request
              # remains the same as that of the request.
              #
              # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
              #
              # The default is set to false.
          "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
              # that was supplied in the request.
              #
              # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
              # supplied, the path of the original request is used for the redirect.
              #
              # The value must be from 1 to 1024 characters.
          "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
              # the HttpRouteRuleMatch, retaining the remaining portion
              # of the URL before redirecting the request.
              #
              # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
              # supplied, the path of the original request is used for the redirect.
              #
              # The value must be from 1 to 1024 characters.
          "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
              #
              # Supported values are:
              #
              #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
              #    to 301.
              #    - FOUND, which corresponds to 302.
              #    - SEE_OTHER which corresponds to 303.
              #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
              #    method is retained.
              #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
              #    method is retained.
          "stripQuery": True or False, # If set to true, any accompanying query portion of the original
              # URL is
              # removed before redirecting the request. If set to false, the
              # query portion of the original URL is retained.
              #
              # The default is set to false.
        },
        "description": "A String", # An optional description of this resource. Provide this property when you
            # create the resource.
        "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object.
            # This field is used in optimistic locking. This field is ignored when
            # inserting a UrlMap. An up-to-date fingerprint must be provided
            # in order to update the UrlMap, otherwise the request will
            # fail with error 412 conditionNotMet.
            #
            # To see the latest fingerprint, make a get() request to
            # retrieve a UrlMap.
        "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
            # for the selected backendService.
            #
            # The headerAction specified here take effect afterheaderAction specified under pathMatcher.
            #
            # headerAction is not supported for load balancers
            # that have
            # their loadBalancingScheme set to EXTERNAL.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has validateForProxyless field set to true.
            # the request is passed along to the selected backendService.
          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
            { # Specification determining how headers are added to requests or responses.
              "headerName": "A String", # The name of the header.
              "headerValue": "A String", # The value of the header to add.
              "replace": True or False, # If false, headerValue is appended to any values
                  # that already
                  # exist for the header. If true, headerValue is set for the
                  # header, discarding any values that were set for that header.
                  #
                  # The default value is true,
                  # unless a variable is present in headerValue,
                  # in which case the default value is false.
                  # .
            },
          ],
          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
              # request before forwarding the request to the backendService.
            "A String",
          ],
          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
              # client.
            { # Specification determining how headers are added to requests or responses.
              "headerName": "A String", # The name of the header.
              "headerValue": "A String", # The value of the header to add.
              "replace": True or False, # If false, headerValue is appended to any values
                  # that already
                  # exist for the header. If true, headerValue is set for the
                  # header, discarding any values that were set for that header.
                  #
                  # The default value is true,
                  # unless a variable is present in headerValue,
                  # in which case the default value is false.
                  # .
            },
          ],
          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
              # response before sending the response back to the client.
            "A String",
          ],
        },
        "hostRules": [ # The list of host rules to use against the URL.
          { # UrlMaps
              # A host-matching rule for a URL. If matched, will use the namedPathMatcher to select the BackendService.
            "description": "A String", # An optional description of this resource. Provide this property when you
                # create the resource.
            "hosts": [ # The list of host patterns to match. They must be valid hostnames with
                # optional port numbers in the format host:port.* matches any string of ([a-z0-9-.]*). In
                # that case, * must be the first character, and if followed by
                # anything, the immediate following character must be either -
                # or ..
                #
                # * based matching is not supported when the URL map is bound
                # to a target gRPC proxy that has the validateForProxyless field
                # set to true.
              "A String",
            ],
            "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion
                # of the URL if the hostRule matches the URL's host portion.
          },
        ],
        "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is
            # defined by the server.
        "kind": "compute#urlMap", # Output only. [Output Only] Type of the resource. Always compute#urlMaps for
            # url maps.
        "name": "A String", # Name of the resource. Provided by the client when the resource is created.
            # The name must be 1-63 characters long, and comply withRFC1035.
            # Specifically, the name must be 1-63 characters long and match the regular
            # expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first
            # character must be a lowercase letter, and all following characters must
            # be a dash, lowercase letter, or digit, except the last character, which
            # cannot be a dash.
        "pathMatchers": [ # The list of named PathMatchers to use against the URL.
          { # A matcher for the path portion of the URL. The BackendService
              # from the longest-matched rule will serve the URL. If no rule was matched, the
              # default service is used.
            "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # defaultCustomErrorResponsePolicy specifies how the Load
                # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                #
                # This policy takes
                # effect at the PathMatcher level and applies only when no
                # policy has been defined for the error code at lower levels likeRouteRule and PathRule within thisPathMatcher. If an error code does not have a policy defined
                # in defaultCustomErrorResponsePolicy, then a policy defined for
                # the error code in UrlMap.defaultCustomErrorResponsePolicy
                # takes effect.
                #
                # For example, consider a UrlMap with the following
                # configuration:
                #
                #
                #      - UrlMap.defaultCustomErrorResponsePolicy is configured
                #      with policies for 5xx and 4xx errors
                #      - A RouteRule for /coming_soon/ is configured for the
                #      error code 404.
                #
                # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                # the policy in RouteRule.customErrorResponsePolicy takes
                # effect. If any of the requests in this example encounter a 500
                # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                #
                # When
                # used in conjunction withpathMatcher.defaultRouteAction.retryPolicy, retries take
                # precedence. Only once all retries are exhausted, thedefaultCustomErrorResponsePolicy is applied. While attempting
                # a retry, if load balancer is successful in reaching the
                # service, the defaultCustomErrorResponsePolicy is ignored and
                # the response from the service is returned to the client.
                #
                # defaultCustomErrorResponsePolicy is supported only for
                # global external Application Load Balancers.
                # backend service or backend bucket responds with an error.
              "errorResponseRules": [ # Specifies rules for returning error responses.
                  #
                  # In a given policy, if you specify rules for both a range of error codes
                  # as well as rules for specific error codes then rules with specific error
                  # codes have a higher priority. For example, assume that you configure a rule
                  # for 401 (Un-authorized) code, and another for all 4 series
                  # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                  # However if the backend service returns a 403, the rule for4xx takes effect.
                { # Specifies the mapping between the response code that will be returned along
                    # with the custom error content and the response code returned by the backend
                    # service.
                  "matchResponseCodes": [ # Valid values include:
                      #
                      #
                      #      - A number between 400 and 599: For example
                      #      401 or 503, in which case the load balancer
                      #      applies the policy if the error code exactly matches this value.
                      #      - 5xx: Load Balancer will apply the policy if the
                      #      backend service responds with any response code in the range of
                      #      500 to 599.
                      #    - 4xx: Load
                      #      Balancer will apply the policy if the backend service responds with any
                      #      response code in the range of 400 to
                      #      499.
                      #
                      # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                    "A String",
                  ],
                  "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                      # error content. If overrideResponseCode is not supplied, the
                      # same response code returned by the original backend bucket or backend
                      # service is returned to the client.
                  "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                      #
                      # path must start
                      # with a leading slash. path cannot have trailing slashes.
                      #
                      # If the file is not available in backendBucket  or the
                      # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                      #
                      # The value must
                      # be from 1 to 1024 characters
                },
              ],
              "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                  # contains the custom error content. Examples are:
                  #
                  #
                  #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                  #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                  #      - global/backendBuckets/myBackendBucket
                  #
                  # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                  # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                  #
                  # If load balancer cannot reach
                  # the backendBucket, a simple Not Found Error will
                  # be returned, with the original response code (oroverrideResponseCode if configured).
                  #
                  # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
            },
            "defaultRouteAction": { # defaultRouteAction takes effect when none of the
                # pathRules or routeRules match. The load balancer
                # performs advanced routing actions, such as URL rewrites and
                # header transformations, before forwarding the request to the
                # selected backend.
                #
                #
                # Only one of defaultUrlRedirect, defaultService
                # or defaultRouteAction.weightedBackendService can be set.
                #
                #
                # URL maps for classic Application Load Balancers only support
                # the urlRewrite action within a path matcher'sdefaultRouteAction.
              "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                  # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                  # property must be specified. This policy cannot be specified if any target
                  # backend has Identity-Aware Proxy enabled.
                "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                    # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                    # header names can be specified. The cache is bypassed for all `cacheMode`
                    # values.
                  "A String",
                ],
                "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                    # on the backend type: for Backend Services, the complete request URI is
                    # used; for Backend Buckets, the request URI is used without the protocol or
                    # host, and only query parameters known to Cloud Storage are included.
                    # Policy defined on Route Action.
                  "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                      # parameters will be included. Either specify `excludedQueryParameters`
                      # or `includedQueryParameters`, not both. '&' and '=' will be percent
                      # encoded and not treated as delimiters.
                      #
                      # Note: This field applies to routes that use backend services. Attempting
                      # to set it on a route that points exclusively to Backend Buckets will
                      # result in a configuration error. For routes that point to a Backend
                      # Bucket, use `includedQueryParameters` to define which parameters should
                      # be part of the cache key.
                    "A String",
                  ],
                  "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                      #
                      # Note: This setting is only applicable to routes that use a Backend
                      # Service. It does not affect requests served by a Backend Bucket, as the
                      # host is never included in a Backend Bucket's cache key. Attempting to set
                      # it on a route that points exclusively to Backend Buckets will result in a
                      # configuration error.
                  "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                      #
                      # Note: This setting is only applicable to routes that use a Backend
                      # Service. It does not affect requests served by a Backend Bucket, as the
                      # protocol is never included in a Backend Bucket's cache key. Attempting to
                      # set on a route that points exclusively to Backend Buckets will result in
                      # a configuration error.
                  "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                      # `includedQueryParameters` and `excludedQueryParameters`. If neither
                      # is set, the entire query string will be included. If false, the query
                      # string will be excluded from the cache key entirely.
                      #
                      # Note: This field applies to routes that use backend services. Attempting
                      # to set it on a route that points exclusively to Backend Buckets will
                      # result in a configuration error. For routes that point to a Backend
                      # Bucket, use `includedQueryParameters` to define which parameters should
                      # be part of the cache key.
                  "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                      # The name=value pair will be used in the cache key Cloud CDN generates.
                      #
                      # Note: This setting is only applicable to routes that use a Backend
                      # Service. It does not affect requests served by a Backend Bucket.
                      # Attempting to set it on a route that points exclusively to Backend
                      # Buckets will result in a configuration error. Up to 5 cookie names can be
                      # specified.
                    "A String",
                  ],
                  "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                    "A String",
                  ],
                  "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                      # parameters will be excluded. Either specify `includedQueryParameters`
                      # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                      # encoded and not treated as delimiters.
                    "A String",
                  ],
                },
                "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                    # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                    # content. This is used to clamp the max-age (or Expires) value sent to the
                    # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                    # is used for the response max-age directive, along with a "public"
                    # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                    # clamps the max-age from the origin (if specified), or else sets the
                    # response max-age directive to the lesser of the `clientTtl` and
                    # `defaultTtl`, and also ensures a "public" cache-control directive is
                    # present. The maximum allowed value is 31,622,400s (1 year). If not
                    # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                    # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                    # `USE_ORIGIN_HEADERS`.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                    # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                    # "always revalidate". The value of `defaultTtl` cannot be set to a value
                    # greater than that of `maxTtl`. When the `cacheMode` is set to
                    # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                    # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                    # accessed objects may be evicted from the cache before the defined TTL. If
                    # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                    # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                    # `USE_ORIGIN_HEADERS`.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                    # attempt to set a max-age or s-maxage higher than this, or an Expires header
                    # more than `maxTtl` seconds in the future will be capped at the value of
                    # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                    # Headers sent to the client will not be modified. Setting a TTL of "0" means
                    # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                    # Infrequently accessed objects may be evicted from the cache before the
                    # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                    # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                    # mode.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                    # to apply fine-grained caching for common errors or redirects.
                    # This can reduce the load on your origin and improve end-user
                    # experience by reducing response latency.
                    # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                    # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                    # the specified response code that lack any Cache-Control, Expires, or
                    # Pragma: no-cache directives. When the `cacheMode` is set to
                    # `FORCE_CACHE_ALL`, negative caching applies to all responses
                    # with the specified response code, and overrides any caching headers. By
                    # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                    #
                    # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                    # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                    # * 405 (Method Not Found), 501 (Not Implemented): 60s
                    #
                    # These defaults can be overridden in `negativeCachingPolicy`.
                    # If not specified, Cloud CDN applies negative caching by default.
                "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                    # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                    # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                    # CDN's default cache TTLs. Note that when specifying an explicit
                    # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                    # all response codes that you wish to cache. Cloud CDN will not apply any
                    # default negative caching when a policy exists.
                  { # Specify CDN TTLs for response error codes.
                    "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                        # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                        # specified as values, and you cannot specify a status code more than
                        # once.
                    "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                        # corresponding status code.
                        # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                        # objects may be evicted from the cache before the defined TTL.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                  },
                ],
                "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                    # requests into a small number of requests to the origin. If not specified,
                    # Cloud CDN applies request coalescing by default.
                "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                    # content with the origin, or when an error is encountered when refreshing
                    # the cache.
                    # This setting defines the default "max-stale" duration for any cached
                    # responses that do not specify a max-stale directive. Stale responses that
                    # exceed the TTL configured here will not be served. The default limit
                    # (max-stale) is 86400s (1 day), which will allow stale content to be
                    # served up to this limit beyond the max-age (or s-maxage) of a cached
                    # response.
                    # The maximum allowed value is 604800 (1 week).
                    # Set this to zero (0) to disable serve-while-stale.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
              },
              "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                  # information about the W3C recommendation for cross-origin resource sharing
                  # (CORS), see Fetch API Living
                  # Standard.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy.
                  # information about the W3C recommendation for cross-origin resource sharing
                  # (CORS), see Fetch API Living
                  # Standard.
                "allowCredentials": True or False, # In response to a preflight request, setting this to true
                    # indicates that
                    # the actual request can include user credentials. This field translates to
                    # the Access-Control-Allow-Credentials header.
                    #
                    # Default is false.
                "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                    # header.
                  "A String",
                ],
                "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                    # header.
                  "A String",
                ],
                "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                    # more information, see regular expression syntax.
                    #
                    # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                    #
                    # Regular expressions can only be used when the loadBalancingScheme is
                    # set to INTERNAL_SELF_MANAGED.
                  "A String",
                ],
                "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                    #
                    # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                  "A String",
                ],
                "disabled": True or False, # If true, disables the CORS policy.
                    # The default value is false, which indicates that the CORS
                    # policy is in effect.
                "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                    # header.
                  "A String",
                ],
                "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                    # seconds. This field translates to the Access-Control-Max-Age
                    # header.
              },
              "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                  # the resiliency of clients to backend service failure. As part of fault
                  # injection, when clients send requests to a backend service, delays can be
                  # introduced by a load balancer on a percentage of requests before sending
                  # those requests to the backend service. Similarly requests from clients can
                  # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                  # that are configured with a fault_injection_policy if:
                  # 1. The traffic is generated by fault injection AND
                  # 2. The fault injection is not a delay fault injection.
                  # Fault injection is not supported with the classic Application Load Balancer
                  # . To see which load balancers support fault injection,
                  # see Load
                  # balancing: Routing and traffic management features.
                  # the resiliency of clients to backend service failure. As part of fault
                  # injection, when clients send requests to a backend service, delays can be
                  # introduced by the load balancer on a percentage of requests before sending
                  # those request to the backend service. Similarly requests from clients can be
                  # aborted by the load balancer for a percentage of requests.
                "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                    # injection.
                  "httpStatus": 42, # The HTTP status code used to abort the request.
                      #
                      # The value must be from 200 to 599 inclusive.
                      #
                      # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                      # according to this
                      # mapping table. HTTP status 200 is mapped to gRPC status
                      # UNKNOWN. Injecting an OK status is currently not supported by
                      # Traffic Director.
                  "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                      # that is aborted as part of fault injection.
                      #
                      # The value must be from 0.0 to 100.0 inclusive.
                },
                "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                    # injection, before being sent to a backend service.
                    # request to the backend service as part of fault injection.
                  "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                      # which a delay is introduced as part of fault injection.
                      #
                      # The value must be from 0.0 to 100.0 inclusive.
                },
              },
              "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                  # Global EXTERNAL_MANAGED load balancer schemes.
                  # Either Cloud CDN must be enabled on the backend service or backend bucket
                  # serving the route, or cache policy must be configured on the same route
                  # dynamically processes and delivers images from the network edge.
                  # Image Optimization is only available for Global External Application Load
                  # Balancers.
                  # Either Cloud CDN must be enabled on the backend service or backend bucket
                  # serving the route, or cache policy must be configured on the same route.
                "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
              },
              "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                  # Unlike the timeout field where the timeout duration starts
                  # from the time the request has been fully processed (known as*end-of-stream*),
                  # the duration in this field is computed from the beginning of the stream
                  # until the response has been processed, including all retries. A
                  # stream that does not complete in this duration is closed.
                  #
                  # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                  # with the route.
                  #
                  # This field is only allowed if the Url map is used with backend services
                  # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                  # are shadowed to a separate mirrored backend service. The load balancer does
                  # not wait for responses from the shadow service. Before sending traffic
                  # to the shadow service, the host / authority header is suffixed with-shadow.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # are shadowed to a separate mirrored backend service. The load balancer
                  # doesn't wait for responses from the shadow service. Before sending traffic
                  # to the shadow service, the host or authority header is suffixed with-shadow.
                "backendService": "A String", # The full or partial URL to the BackendService resource being
                    # mirrored to.
                    #
                    # The backend service configured for a mirroring
                    # policy must reference backends that are of the same type as the original
                    # backend service matched in the URL map.
                    #
                    # Serverless NEG backends are not currently supported as a mirrored
                    # backend service.
                "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
              },
              "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                    # If not specified, defaults to 1.
                "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                    #
                    # If not specified, will use the timeout set in theHttpRouteAction field.
                    # If timeout in the HttpRouteAction field is not set, this field
                    # uses the largest timeout
                    # among all backend services associated with the route.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has the validateForProxyless field set to true.
                    # as a count of seconds and fractions of seconds at nanosecond
                    # resolution. It is independent of any calendar and concepts like "day"
                    # or "month". Range is approximately 10,000 years.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                      # Durations less than one second are represented with a 0
                      # `seconds` field and a positive `nanos` field. Must be from 0
                      # to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                      # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                      # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                    # values are:
                    #
                    #    - 5xx: retry is attempted if the instance or endpoint
                    #    responds with any 5xx response code, or if the instance or
                    #    endpoint does not respond at all. For example, disconnects, reset, read
                    #    timeout, connection failure, and refused streams.
                    #    - gateway-error: Similar to 5xx, but only
                    #    applies to response codes 502, 503 or504.
                    #    - connect-failure: a retry is attempted on failures
                    #    connecting to the instance or endpoint. For example, connection
                    #    timeouts.
                    #    - retriable-4xx: a retry is attempted if the instance
                    #    or endpoint responds with a 4xx response code.
                    #    The only error that you can retry is error code 409.
                    #    - refused-stream: a retry is attempted if the instance
                    #    or endpoint resets the stream with a REFUSED_STREAM error
                    #    code. This reset type indicates that it is safe to retry.
                    #    - cancelled: a retry is attempted if the gRPC status
                    #    code in the response header is set to cancelled.
                    #    - deadline-exceeded: a retry is attempted if the gRPC
                    #    status code in the response header is set todeadline-exceeded.
                    #    - internal: a retry is attempted if the gRPC
                    #    status code in the response header is set tointernal.
                    #    - resource-exhausted: a retry is attempted if the gRPC
                    #    status code in the response header is set toresource-exhausted.
                    #    - unavailable: a retry is attempted if the gRPC
                    #    status code in the response header is set tounavailable.
                    #
                    # Only the following codes are supported when the URL map is bound to
                    # target gRPC proxy that has validateForProxyless field set to true.
                    #
                    #    - cancelled
                    #    - deadline-exceeded
                    #    - internal
                    #    - resource-exhausted
                    #    - unavailable
                  "A String",
                ],
              },
              "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                  # time the request has been fully processed (known as *end-of-stream*)
                  # up until the response has been processed. Timeout includes
                  # all retries.
                  #
                  # If not specified, this field uses the largest timeout among all backend
                  # services associated with the route.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has validateForProxyless field set to true.
                  # as a count of seconds and fractions of seconds at nanosecond
                  # resolution. It is independent of any calendar and concepts like "day"
                  # or "month". Range is approximately 10,000 years.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                    # Durations less than one second are represented with a 0
                    # `seconds` field and a positive `nanos` field. Must be from 0
                    # to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                    # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                    # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                  # to the matched service.
                  #
                  #  urlRewrite is the only action supported in UrlMaps
                  # for classic Application Load Balancers.
                  #
                  # Not supported when the URL map is bound to a target gRPC proxy that
                  # has the validateForProxyless field set to true.
                  # backend service.
                "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                    # host header is replaced with contents of hostRewrite.
                    #
                    # The value must be from 1 to 255 characters.
                "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                    # matching portion of the request's path is replaced bypathPrefixRewrite.
                    #
                    # The value must be from 1 to 1024 characters.
                "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                    # header) using the HTTP template syntax.
                    #
                    # A corresponding
                    # path_template_match must be specified. Any template variables must exist in
                    # the path_template_match field.
                    #
                    #
                    #       - -At least one variable must be specified in the path_template_match
                    #       field
                    #    - You can omit variables from the rewritten URL
                    #       - The * and ** operators cannot be matched
                    #       unless they have a corresponding variable name - e.g.
                    #       {format=*} or {var=**}.
                    #
                    # For example, a path_template_match of /static/{format=**}
                    # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                    # rewrite, so that /{country}/{format}/{suffix=**} can be
                    # rewritten as /content/{format}/{country}/{suffix}.
                    #
                    # At least
                    # one non-empty routeRules[].matchRules[].path_template_match is
                    # required.
                    #
                    # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                  "pathPattern": "A String", # The regular expression used to match against the URL path.
                      # It uses RE2 syntax with the following constraints:
                      #
                      #
                      #      - Any single character operators
                      #      - Groups are allowed to have only submatch operator inside
                      #      - Groups are allowed only without any char repetition, e.g.
                      #      .*
                      #      - Any char repetition, e.g. .*, is
                      #      only allowed to be used in a single regex together with:
                      #
                      #
                      #             - Empty string operators
                      #             - Other repetitions
                      #             - Ranges
                      #             - Repetitions of ranges
                      #
                      #
                      #      - Ranges are only allowed to have:
                      #
                      #
                      #             - Character range
                      #             - Digits range
                      #             - Symbols listed in characters allowed for ranges
                  "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                      # the path.
                },
              },
              "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                  # occurs. The weights determine the fraction of traffic that flows to
                  # their corresponding backend service. If all traffic needs to
                  # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                  #
                  # After a backend service is identified and before forwarding
                  # the request to
                  # the backend service, advanced routing actions such as URL rewrites and
                  # header transformations are applied depending on additional settings
                  # specified in this HttpRouteAction.
                { # In contrast to a single BackendService in
                    # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                    # multiple backend services. The volume of traffic for each
                    # backend service is proportional to the weight specified
                    # in each WeightedBackendService
                  "backendService": "A String", # The full or partial URL to the default BackendService
                      # resource. Before
                      # forwarding the request to backendService, the load balancer
                      # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                  "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                      # effect for the selected backendService.
                      #
                      # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                      #
                      # headerAction is not supported for load balancers that have
                      # their loadBalancingScheme set to EXTERNAL.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                      # the request is passed along to the selected backendService.
                    "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values
                            # that already
                            # exist for the header. If true, headerValue is set for the
                            # header, discarding any values that were set for that header.
                            #
                            # The default value is true,
                            # unless a variable is present in headerValue,
                            # in which case the default value is false.
                            # .
                      },
                    ],
                    "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                        # request before forwarding the request to the backendService.
                      "A String",
                    ],
                    "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                        # client.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values
                            # that already
                            # exist for the header. If true, headerValue is set for the
                            # header, discarding any values that were set for that header.
                            #
                            # The default value is true,
                            # unless a variable is present in headerValue,
                            # in which case the default value is false.
                            # .
                      },
                    ],
                    "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                        # response before sending the response back to the client.
                      "A String",
                    ],
                  },
                  "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                      # computed asweight / (sum of all weightedBackendService weights in routeAction).
                      #
                      # The selection of a backend service is determined only for new traffic.
                      # Once a user's request has been directed to a backend service,
                      # subsequent requests are sent to the same backend service as
                      # determined by the backend service's session affinity policy.
                      # Don't configure session affinity if you're using weighted traffic
                      # splitting. If you do, the weighted traffic splitting configuration takes
                      # precedence.
                      #
                      # The value must be from 0 to 1000.
                },
              ],
            },
            "defaultService": "A String", # The full or partial URL to the BackendService resource. This
                # URL is used if none of the pathRules orrouteRules defined by this PathMatcher are
                # matched. For example, the
                # following are all valid URLs to a BackendService resource:
                #
                #
                #      - https://www.googleapis.com/compute/v1/projects/project/global/backendServices/backendService
                #      - compute/v1/projects/project/global/backendServices/backendService
                #      - global/backendServices/backendService
                #
                #
                # If defaultRouteAction is also specified, advanced
                # routing actions, such as URL rewrites, take effect before sending the
                # request to the backend.
                #
                #
                # Only one of defaultUrlRedirect, defaultService
                # or defaultRouteAction.weightedBackendService can be set.
                #
                #
                # Authorization requires one or more of the following Google IAM permissions on the
                # specified resource default_service:
                #
                #
                #       - compute.backendBuckets.use
                #       - compute.backendServices.use
            "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules orrouteRules match, the request is redirected to a URL specified
                # by defaultUrlRedirect.
                #
                #
                # Only one of defaultUrlRedirect, defaultService
                # or defaultRouteAction.weightedBackendService can be set.
                #
                #
                # Not supported when the URL map is bound to a target gRPC proxy.
              "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                  # was supplied in the request.
                  #
                  # The value must be from 1 to 255
                  # characters.
              "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                  # set to HTTPS.
                  # If set to false, the URL scheme of the redirected request
                  # remains the same as that of the request.
                  #
                  # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                  #
                  # The default is set to false.
              "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                  # that was supplied in the request.
                  #
                  # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                  # supplied, the path of the original request is used for the redirect.
                  #
                  # The value must be from 1 to 1024 characters.
              "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                  # the HttpRouteRuleMatch, retaining the remaining portion
                  # of the URL before redirecting the request.
                  #
                  # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                  # supplied, the path of the original request is used for the redirect.
                  #
                  # The value must be from 1 to 1024 characters.
              "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                  #
                  # Supported values are:
                  #
                  #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                  #    to 301.
                  #    - FOUND, which corresponds to 302.
                  #    - SEE_OTHER which corresponds to 303.
                  #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                  #    method is retained.
                  #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                  #    method is retained.
              "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                  # URL is
                  # removed before redirecting the request. If set to false, the
                  # query portion of the original URL is retained.
                  #
                  # The default is set to false.
            },
            "description": "A String", # An optional description of this resource. Provide this property when you
                # create the resource.
            "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                # for the selected backend service.
                #
                # HeaderAction specified here are applied after the matchingHttpRouteRule HeaderAction and before theHeaderAction in the UrlMap
                #
                # HeaderAction is not supported for load balancers
                # that have
                # their loadBalancingScheme set to EXTERNAL.
                #
                # Not supported when the URL map is bound to a target gRPC proxy that
                # has validateForProxyless field set to true.
                # the request is passed along to the selected backendService.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                  # client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values
                      # that already
                      # exist for the header. If true, headerValue is set for the
                      # header, discarding any values that were set for that header.
                      #
                      # The default value is true,
                      # unless a variable is present in headerValue,
                      # in which case the default value is false.
                      # .
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                  # response before sending the response back to the client.
                "A String",
              ],
            },
            "name": "A String", # The name to which this PathMatcher is referred by theHostRule.
            "pathRules": [ # The list of path rules. Use this list instead of routeRules
                # when routing based on simple path matching is all that's required. A path
                # rule can only include a wildcard character (*) after a
                # forward slash character ("/").
                #
                # The order by which path rules are specified does not matter.
                # Matches are always done on the longest-path-first basis.
                #
                # For example: a pathRule with a path /a/b/c/* will match
                # before /a/b/* irrespective of the order in which those paths appear in this
                # list.
                #
                # Within a given pathMatcher, only one ofpathRules or routeRules must be set.
              { # A path-matching rule for a URL. If matched, will use the specifiedBackendService to handle the traffic arriving at this URL.
                "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                    # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                    #
                    # If a policy for an
                    # error code is not configured for the PathRule, a policy for
                    # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                    # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                    # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                    # effect.
                    #
                    # For example, consider a UrlMap with the following configuration:
                    #
                    #
                    #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                    #      with policies for 5xx and 4xx errors
                    #      - A PathRule for /coming_soon/ is configured for the error
                    #      code 404.
                    #
                    # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                    # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                    # the policy in PathRule.customErrorResponsePolicy takes
                    # effect. If any of the requests in this example encounter a 500
                    # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                    #
                    # customErrorResponsePolicy is supported only for
                    # global external Application Load Balancers.
                    # backend service or backend bucket responds with an error.
                  "errorResponseRules": [ # Specifies rules for returning error responses.
                      #
                      # In a given policy, if you specify rules for both a range of error codes
                      # as well as rules for specific error codes then rules with specific error
                      # codes have a higher priority. For example, assume that you configure a rule
                      # for 401 (Un-authorized) code, and another for all 4 series
                      # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                      # However if the backend service returns a 403, the rule for4xx takes effect.
                    { # Specifies the mapping between the response code that will be returned along
                        # with the custom error content and the response code returned by the backend
                        # service.
                      "matchResponseCodes": [ # Valid values include:
                          #
                          #
                          #      - A number between 400 and 599: For example
                          #      401 or 503, in which case the load balancer
                          #      applies the policy if the error code exactly matches this value.
                          #      - 5xx: Load Balancer will apply the policy if the
                          #      backend service responds with any response code in the range of
                          #      500 to 599.
                          #    - 4xx: Load
                          #      Balancer will apply the policy if the backend service responds with any
                          #      response code in the range of 400 to
                          #      499.
                          #
                          # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                        "A String",
                      ],
                      "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                          # error content. If overrideResponseCode is not supplied, the
                          # same response code returned by the original backend bucket or backend
                          # service is returned to the client.
                      "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                          #
                          # path must start
                          # with a leading slash. path cannot have trailing slashes.
                          #
                          # If the file is not available in backendBucket  or the
                          # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                          #
                          # The value must
                          # be from 1 to 1024 characters
                    },
                  ],
                  "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                      # contains the custom error content. Examples are:
                      #
                      #
                      #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                      #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                      #      - global/backendBuckets/myBackendBucket
                      #
                      # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                      # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                      #
                      # If load balancer cannot reach
                      # the backendBucket, a simple Not Found Error will
                      # be returned, with the original response code (oroverrideResponseCode if configured).
                      #
                      # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                },
                "paths": [ # The list of path patterns to match. Each must start with /
                    # and the only place a * is allowed is at the end following
                    # a /.  The string fed to the path matcher does not include
                    # any text after the first ? or #, and
                    # those chars are not allowed here.
                  "A String",
                ],
                "routeAction": { # In response to a matching path, the load balancer
                    # performs advanced routing actions, such as URL rewrites and header
                    # transformations, before forwarding the request to the selected
                    # backend.
                    #
                    #
                    # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                    #
                    #
                    # URL maps for classic Application Load Balancers only support
                    # the urlRewrite action within a path rule'srouteAction.
                  "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                      # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                      # property must be specified. This policy cannot be specified if any target
                      # backend has Identity-Aware Proxy enabled.
                    "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                        # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                        # header names can be specified. The cache is bypassed for all `cacheMode`
                        # values.
                      "A String",
                    ],
                    "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                        # on the backend type: for Backend Services, the complete request URI is
                        # used; for Backend Buckets, the request URI is used without the protocol or
                        # host, and only query parameters known to Cloud Storage are included.
                        # Policy defined on Route Action.
                      "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                          # parameters will be included. Either specify `excludedQueryParameters`
                          # or `includedQueryParameters`, not both. '&' and '=' will be percent
                          # encoded and not treated as delimiters.
                          #
                          # Note: This field applies to routes that use backend services. Attempting
                          # to set it on a route that points exclusively to Backend Buckets will
                          # result in a configuration error. For routes that point to a Backend
                          # Bucket, use `includedQueryParameters` to define which parameters should
                          # be part of the cache key.
                        "A String",
                      ],
                      "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                          #
                          # Note: This setting is only applicable to routes that use a Backend
                          # Service. It does not affect requests served by a Backend Bucket, as the
                          # host is never included in a Backend Bucket's cache key. Attempting to set
                          # it on a route that points exclusively to Backend Buckets will result in a
                          # configuration error.
                      "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                          #
                          # Note: This setting is only applicable to routes that use a Backend
                          # Service. It does not affect requests served by a Backend Bucket, as the
                          # protocol is never included in a Backend Bucket's cache key. Attempting to
                          # set on a route that points exclusively to Backend Buckets will result in
                          # a configuration error.
                      "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                          # `includedQueryParameters` and `excludedQueryParameters`. If neither
                          # is set, the entire query string will be included. If false, the query
                          # string will be excluded from the cache key entirely.
                          #
                          # Note: This field applies to routes that use backend services. Attempting
                          # to set it on a route that points exclusively to Backend Buckets will
                          # result in a configuration error. For routes that point to a Backend
                          # Bucket, use `includedQueryParameters` to define which parameters should
                          # be part of the cache key.
                      "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                          # The name=value pair will be used in the cache key Cloud CDN generates.
                          #
                          # Note: This setting is only applicable to routes that use a Backend
                          # Service. It does not affect requests served by a Backend Bucket.
                          # Attempting to set it on a route that points exclusively to Backend
                          # Buckets will result in a configuration error. Up to 5 cookie names can be
                          # specified.
                        "A String",
                      ],
                      "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                        "A String",
                      ],
                      "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                          # parameters will be excluded. Either specify `includedQueryParameters`
                          # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                          # encoded and not treated as delimiters.
                        "A String",
                      ],
                    },
                    "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                        # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                    "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                        # content. This is used to clamp the max-age (or Expires) value sent to the
                        # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                        # is used for the response max-age directive, along with a "public"
                        # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                        # clamps the max-age from the origin (if specified), or else sets the
                        # response max-age directive to the lesser of the `clientTtl` and
                        # `defaultTtl`, and also ensures a "public" cache-control directive is
                        # present. The maximum allowed value is 31,622,400s (1 year). If not
                        # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                        # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                        # `USE_ORIGIN_HEADERS`.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                        # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                        # "always revalidate". The value of `defaultTtl` cannot be set to a value
                        # greater than that of `maxTtl`. When the `cacheMode` is set to
                        # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                        # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                        # accessed objects may be evicted from the cache before the defined TTL. If
                        # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                        # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                        # `USE_ORIGIN_HEADERS`.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                        # attempt to set a max-age or s-maxage higher than this, or an Expires header
                        # more than `maxTtl` seconds in the future will be capped at the value of
                        # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                        # Headers sent to the client will not be modified. Setting a TTL of "0" means
                        # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                        # Infrequently accessed objects may be evicted from the cache before the
                        # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                        # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                        # mode.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                        # to apply fine-grained caching for common errors or redirects.
                        # This can reduce the load on your origin and improve end-user
                        # experience by reducing response latency.
                        # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                        # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                        # the specified response code that lack any Cache-Control, Expires, or
                        # Pragma: no-cache directives. When the `cacheMode` is set to
                        # `FORCE_CACHE_ALL`, negative caching applies to all responses
                        # with the specified response code, and overrides any caching headers. By
                        # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                        #
                        # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                        # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                        # * 405 (Method Not Found), 501 (Not Implemented): 60s
                        #
                        # These defaults can be overridden in `negativeCachingPolicy`.
                        # If not specified, Cloud CDN applies negative caching by default.
                    "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                        # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                        # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                        # CDN's default cache TTLs. Note that when specifying an explicit
                        # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                        # all response codes that you wish to cache. Cloud CDN will not apply any
                        # default negative caching when a policy exists.
                      { # Specify CDN TTLs for response error codes.
                        "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                            # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                            # specified as values, and you cannot specify a status code more than
                            # once.
                        "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                            # corresponding status code.
                            # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                            # objects may be evicted from the cache before the defined TTL.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                      },
                    ],
                    "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                        # requests into a small number of requests to the origin. If not specified,
                        # Cloud CDN applies request coalescing by default.
                    "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                        # content with the origin, or when an error is encountered when refreshing
                        # the cache.
                        # This setting defines the default "max-stale" duration for any cached
                        # responses that do not specify a max-stale directive. Stale responses that
                        # exceed the TTL configured here will not be served. The default limit
                        # (max-stale) is 86400s (1 day), which will allow stale content to be
                        # served up to this limit beyond the max-age (or s-maxage) of a cached
                        # response.
                        # The maximum allowed value is 604800 (1 week).
                        # Set this to zero (0) to disable serve-while-stale.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                  },
                  "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                      # information about the W3C recommendation for cross-origin resource sharing
                      # (CORS), see Fetch API Living
                      # Standard.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                      # information about the W3C recommendation for cross-origin resource sharing
                      # (CORS), see Fetch API Living
                      # Standard.
                    "allowCredentials": True or False, # In response to a preflight request, setting this to true
                        # indicates that
                        # the actual request can include user credentials. This field translates to
                        # the Access-Control-Allow-Credentials header.
                        #
                        # Default is false.
                    "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                        # header.
                      "A String",
                    ],
                    "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                        # header.
                      "A String",
                    ],
                    "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                        # more information, see regular expression syntax.
                        #
                        # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                        #
                        # Regular expressions can only be used when the loadBalancingScheme is
                        # set to INTERNAL_SELF_MANAGED.
                      "A String",
                    ],
                    "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                        #
                        # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      "A String",
                    ],
                    "disabled": True or False, # If true, disables the CORS policy.
                        # The default value is false, which indicates that the CORS
                        # policy is in effect.
                    "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                        # header.
                      "A String",
                    ],
                    "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                        # seconds. This field translates to the Access-Control-Max-Age
                        # header.
                  },
                  "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                      # the resiliency of clients to backend service failure. As part of fault
                      # injection, when clients send requests to a backend service, delays can be
                      # introduced by a load balancer on a percentage of requests before sending
                      # those requests to the backend service. Similarly requests from clients can
                      # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                      # that are configured with a fault_injection_policy if:
                      # 1. The traffic is generated by fault injection AND
                      # 2. The fault injection is not a delay fault injection.
                      # Fault injection is not supported with the classic Application Load Balancer
                      # . To see which load balancers support fault injection,
                      # see Load
                      # balancing: Routing and traffic management features.
                      # the resiliency of clients to backend service failure. As part of fault
                      # injection, when clients send requests to a backend service, delays can be
                      # introduced by the load balancer on a percentage of requests before sending
                      # those request to the backend service. Similarly requests from clients can be
                      # aborted by the load balancer for a percentage of requests.
                    "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                        # injection.
                      "httpStatus": 42, # The HTTP status code used to abort the request.
                          #
                          # The value must be from 200 to 599 inclusive.
                          #
                          # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                          # according to this
                          # mapping table. HTTP status 200 is mapped to gRPC status
                          # UNKNOWN. Injecting an OK status is currently not supported by
                          # Traffic Director.
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                          # that is aborted as part of fault injection.
                          #
                          # The value must be from 0.0 to 100.0 inclusive.
                    },
                    "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                        # injection, before being sent to a backend service.
                        # request to the backend service as part of fault injection.
                      "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                          # which a delay is introduced as part of fault injection.
                          #
                          # The value must be from 0.0 to 100.0 inclusive.
                    },
                  },
                  "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                      # Global EXTERNAL_MANAGED load balancer schemes.
                      # Either Cloud CDN must be enabled on the backend service or backend bucket
                      # serving the route, or cache policy must be configured on the same route
                      # dynamically processes and delivers images from the network edge.
                      # Image Optimization is only available for Global External Application Load
                      # Balancers.
                      # Either Cloud CDN must be enabled on the backend service or backend bucket
                      # serving the route, or cache policy must be configured on the same route.
                    "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                  },
                  "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                      # Unlike the timeout field where the timeout duration starts
                      # from the time the request has been fully processed (known as*end-of-stream*),
                      # the duration in this field is computed from the beginning of the stream
                      # until the response has been processed, including all retries. A
                      # stream that does not complete in this duration is closed.
                      #
                      # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                      # with the route.
                      #
                      # This field is only allowed if the Url map is used with backend services
                      # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                      # are shadowed to a separate mirrored backend service. The load balancer does
                      # not wait for responses from the shadow service. Before sending traffic
                      # to the shadow service, the host / authority header is suffixed with-shadow.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # are shadowed to a separate mirrored backend service. The load balancer
                      # doesn't wait for responses from the shadow service. Before sending traffic
                      # to the shadow service, the host or authority header is suffixed with-shadow.
                    "backendService": "A String", # The full or partial URL to the BackendService resource being
                        # mirrored to.
                        #
                        # The backend service configured for a mirroring
                        # policy must reference backends that are of the same type as the original
                        # backend service matched in the URL map.
                        #
                        # Serverless NEG backends are not currently supported as a mirrored
                        # backend service.
                    "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                  },
                  "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                    "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                        # If not specified, defaults to 1.
                    "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                        #
                        # If not specified, will use the timeout set in theHttpRouteAction field.
                        # If timeout in the HttpRouteAction field is not set, this field
                        # uses the largest timeout
                        # among all backend services associated with the route.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                        # values are:
                        #
                        #    - 5xx: retry is attempted if the instance or endpoint
                        #    responds with any 5xx response code, or if the instance or
                        #    endpoint does not respond at all. For example, disconnects, reset, read
                        #    timeout, connection failure, and refused streams.
                        #    - gateway-error: Similar to 5xx, but only
                        #    applies to response codes 502, 503 or504.
                        #    - connect-failure: a retry is attempted on failures
                        #    connecting to the instance or endpoint. For example, connection
                        #    timeouts.
                        #    - retriable-4xx: a retry is attempted if the instance
                        #    or endpoint responds with a 4xx response code.
                        #    The only error that you can retry is error code 409.
                        #    - refused-stream: a retry is attempted if the instance
                        #    or endpoint resets the stream with a REFUSED_STREAM error
                        #    code. This reset type indicates that it is safe to retry.
                        #    - cancelled: a retry is attempted if the gRPC status
                        #    code in the response header is set to cancelled.
                        #    - deadline-exceeded: a retry is attempted if the gRPC
                        #    status code in the response header is set todeadline-exceeded.
                        #    - internal: a retry is attempted if the gRPC
                        #    status code in the response header is set tointernal.
                        #    - resource-exhausted: a retry is attempted if the gRPC
                        #    status code in the response header is set toresource-exhausted.
                        #    - unavailable: a retry is attempted if the gRPC
                        #    status code in the response header is set tounavailable.
                        #
                        # Only the following codes are supported when the URL map is bound to
                        # target gRPC proxy that has validateForProxyless field set to true.
                        #
                        #    - cancelled
                        #    - deadline-exceeded
                        #    - internal
                        #    - resource-exhausted
                        #    - unavailable
                      "A String",
                    ],
                  },
                  "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                      # time the request has been fully processed (known as *end-of-stream*)
                      # up until the response has been processed. Timeout includes
                      # all retries.
                      #
                      # If not specified, this field uses the largest timeout among all backend
                      # services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                      # to the matched service.
                      #
                      #  urlRewrite is the only action supported in UrlMaps
                      # for classic Application Load Balancers.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # backend service.
                    "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                        # host header is replaced with contents of hostRewrite.
                        #
                        # The value must be from 1 to 255 characters.
                    "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                        # matching portion of the request's path is replaced bypathPrefixRewrite.
                        #
                        # The value must be from 1 to 1024 characters.
                    "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                        # header) using the HTTP template syntax.
                        #
                        # A corresponding
                        # path_template_match must be specified. Any template variables must exist in
                        # the path_template_match field.
                        #
                        #
                        #       - -At least one variable must be specified in the path_template_match
                        #       field
                        #    - You can omit variables from the rewritten URL
                        #       - The * and ** operators cannot be matched
                        #       unless they have a corresponding variable name - e.g.
                        #       {format=*} or {var=**}.
                        #
                        # For example, a path_template_match of /static/{format=**}
                        # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                        # rewrite, so that /{country}/{format}/{suffix=**} can be
                        # rewritten as /content/{format}/{country}/{suffix}.
                        #
                        # At least
                        # one non-empty routeRules[].matchRules[].path_template_match is
                        # required.
                        #
                        # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                    "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                      "pathPattern": "A String", # The regular expression used to match against the URL path.
                          # It uses RE2 syntax with the following constraints:
                          #
                          #
                          #      - Any single character operators
                          #      - Groups are allowed to have only submatch operator inside
                          #      - Groups are allowed only without any char repetition, e.g.
                          #      .*
                          #      - Any char repetition, e.g. .*, is
                          #      only allowed to be used in a single regex together with:
                          #
                          #
                          #             - Empty string operators
                          #             - Other repetitions
                          #             - Ranges
                          #             - Repetitions of ranges
                          #
                          #
                          #      - Ranges are only allowed to have:
                          #
                          #
                          #             - Character range
                          #             - Digits range
                          #             - Symbols listed in characters allowed for ranges
                      "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                          # the path.
                    },
                  },
                  "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                      # occurs. The weights determine the fraction of traffic that flows to
                      # their corresponding backend service. If all traffic needs to
                      # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                      #
                      # After a backend service is identified and before forwarding
                      # the request to
                      # the backend service, advanced routing actions such as URL rewrites and
                      # header transformations are applied depending on additional settings
                      # specified in this HttpRouteAction.
                    { # In contrast to a single BackendService in
                        # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                        # multiple backend services. The volume of traffic for each
                        # backend service is proportional to the weight specified
                        # in each WeightedBackendService
                      "backendService": "A String", # The full or partial URL to the default BackendService
                          # resource. Before
                          # forwarding the request to backendService, the load balancer
                          # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                          # effect for the selected backendService.
                          #
                          # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                          #
                          # headerAction is not supported for load balancers that have
                          # their loadBalancingScheme set to EXTERNAL.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has validateForProxyless field set to true.
                          # the request is passed along to the selected backendService.
                        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values
                                # that already
                                # exist for the header. If true, headerValue is set for the
                                # header, discarding any values that were set for that header.
                                #
                                # The default value is true,
                                # unless a variable is present in headerValue,
                                # in which case the default value is false.
                                # .
                          },
                        ],
                        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                            # request before forwarding the request to the backendService.
                          "A String",
                        ],
                        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                            # client.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values
                                # that already
                                # exist for the header. If true, headerValue is set for the
                                # header, discarding any values that were set for that header.
                                #
                                # The default value is true,
                                # unless a variable is present in headerValue,
                                # in which case the default value is false.
                                # .
                          },
                        ],
                        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                            # response before sending the response back to the client.
                          "A String",
                        ],
                      },
                      "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                          # computed asweight / (sum of all weightedBackendService weights in routeAction).
                          #
                          # The selection of a backend service is determined only for new traffic.
                          # Once a user's request has been directed to a backend service,
                          # subsequent requests are sent to the same backend service as
                          # determined by the backend service's session affinity policy.
                          # Don't configure session affinity if you're using weighted traffic
                          # splitting. If you do, the weighted traffic splitting configuration takes
                          # precedence.
                          #
                          # The value must be from 0 to 1000.
                    },
                  ],
                },
                "service": "A String", # The full or partial URL of the backend service resource to which traffic
                    # is directed if this rule is matched. If routeAction is
                    # also specified, advanced routing actions, such as URL rewrites,
                    # take effect before sending the request to the backend.
                    #
                    #
                    # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL
                    # specified by urlRedirect.
                    #
                    #
                    # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                    #
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                  "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                      # was supplied in the request.
                      #
                      # The value must be from 1 to 255
                      # characters.
                  "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                      # set to HTTPS.
                      # If set to false, the URL scheme of the redirected request
                      # remains the same as that of the request.
                      #
                      # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                      #
                      # The default is set to false.
                  "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                      # that was supplied in the request.
                      #
                      # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                      # supplied, the path of the original request is used for the redirect.
                      #
                      # The value must be from 1 to 1024 characters.
                  "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                      # the HttpRouteRuleMatch, retaining the remaining portion
                      # of the URL before redirecting the request.
                      #
                      # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                      # supplied, the path of the original request is used for the redirect.
                      #
                      # The value must be from 1 to 1024 characters.
                  "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                      #
                      # Supported values are:
                      #
                      #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                      #    to 301.
                      #    - FOUND, which corresponds to 302.
                      #    - SEE_OTHER which corresponds to 303.
                      #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                      #    method is retained.
                      #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                      #    method is retained.
                  "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                      # URL is
                      # removed before redirecting the request. If set to false, the
                      # query portion of the original URL is retained.
                      #
                      # The default is set to false.
                },
              },
            ],
            "routeRules": [ # The list of HTTP route rules. Use this list instead ofpathRules when advanced route matching and routing actions are
                # desired. routeRules are evaluated in order of priority, from
                # the lowest to highest number.
                #
                # Within a given pathMatcher, you can set only one ofpathRules or routeRules.
              { # The HttpRouteRule setting specifies how to match an HTTP request
                  # and the corresponding routing action that load balancing proxies perform.
                "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the # customErrorResponsePolicy specifies how the Load
                    # Balancer returns error responses when BackendServiceorBackendBucket responds with an error.
                    #
                    # If a policy for an
                    # error code is not configured for the RouteRule, a policy for
                    # the error code configured inpathMatcher.defaultCustomErrorResponsePolicy is applied. If
                    # one is not specified inpathMatcher.defaultCustomErrorResponsePolicy, the policy
                    # configured in UrlMap.defaultCustomErrorResponsePolicy takes
                    # effect.
                    #
                    # For example, consider a UrlMap with the following configuration:
                    #
                    #
                    #      - UrlMap.defaultCustomErrorResponsePolicy are configured
                    #      with policies for 5xx and 4xx errors
                    #      - A RouteRule for /coming_soon/ is configured for the
                    #      error code 404.
                    #
                    # If the request is for www.myotherdomain.com and a404 is encountered, the policy underUrlMap.defaultCustomErrorResponsePolicy takes effect. If a404 response is encountered for the requestwww.example.com/current_events/, the pathMatcher's policy
                    # takes effect. If however, the request forwww.example.com/coming_soon/ encounters a 404,
                    # the policy in RouteRule.customErrorResponsePolicy takes
                    # effect. If any of the requests in this example encounter a 500
                    # error code, the policy atUrlMap.defaultCustomErrorResponsePolicy takes effect.
                    #
                    # When
                    # used in conjunction withrouteRules.routeAction.retryPolicy, retries take
                    # precedence. Only once all retries are exhausted, thecustomErrorResponsePolicy is applied. While attempting
                    # a retry, if load balancer is successful in reaching the
                    # service, the customErrorResponsePolicy is ignored and
                    # the response from the service is returned to the client.
                    #
                    # customErrorResponsePolicy is supported only for
                    # global external Application Load Balancers.
                    # backend service or backend bucket responds with an error.
                  "errorResponseRules": [ # Specifies rules for returning error responses.
                      #
                      # In a given policy, if you specify rules for both a range of error codes
                      # as well as rules for specific error codes then rules with specific error
                      # codes have a higher priority. For example, assume that you configure a rule
                      # for 401 (Un-authorized) code, and another for all 4 series
                      # error codes (4XX). If the backend service returns a401, then the rule for 401 will be applied.
                      # However if the backend service returns a 403, the rule for4xx takes effect.
                    { # Specifies the mapping between the response code that will be returned along
                        # with the custom error content and the response code returned by the backend
                        # service.
                      "matchResponseCodes": [ # Valid values include:
                          #
                          #
                          #      - A number between 400 and 599: For example
                          #      401 or 503, in which case the load balancer
                          #      applies the policy if the error code exactly matches this value.
                          #      - 5xx: Load Balancer will apply the policy if the
                          #      backend service responds with any response code in the range of
                          #      500 to 599.
                          #    - 4xx: Load
                          #      Balancer will apply the policy if the backend service responds with any
                          #      response code in the range of 400 to
                          #      499.
                          #
                          # Values must be unique within matchResponseCodes and across allerrorResponseRules ofCustomErrorResponsePolicy.
                        "A String",
                      ],
                      "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom
                          # error content. If overrideResponseCode is not supplied, the
                          # same response code returned by the original backend bucket or backend
                          # service is returned to the client.
                      "path": "A String", # The full path to a file within backendBucket . For example:/errors/defaultError.html
                          #
                          # path must start
                          # with a leading slash. path cannot have trailing slashes.
                          #
                          # If the file is not available in backendBucket  or the
                          # load balancer cannot reach the BackendBucket, a simpleNot Found Error is returned to the client.
                          #
                          # The value must
                          # be from 1 to 1024 characters
                    },
                  ],
                  "errorService": "A String", # The full or partial URL to the BackendBucket resource that
                      # contains the custom error content. Examples are:
                      #
                      #
                      #      - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket
                      #      - compute/v1/projects/project/global/backendBuckets/myBackendBucket
                      #      - global/backendBuckets/myBackendBucket
                      #
                      # If errorService is not specified at lower levels likepathMatcher, pathRule and routeRule,
                      # an errorService specified at a higher level in theUrlMap will be used. IfUrlMap.defaultCustomErrorResponsePolicy contains one or moreerrorResponseRules[], it must specifyerrorService.
                      #
                      # If load balancer cannot reach
                      # the backendBucket, a simple Not Found Error will
                      # be returned, with the original response code (oroverrideResponseCode if configured).
                      #
                      # errorService is not supported for internal or regionalHTTP/HTTPS load balancers.
                },
                "description": "A String", # The short description conveying the intent of this routeRule.
                    #
                    #
                    # The description can have a maximum length of 1024 characters.
                "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take effect
                    # for the selected backendService.
                    #
                    # The headerAction value specified here is applied before the
                    # matching pathMatchers[].headerAction and afterpathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction
                    #
                    # HeaderAction is not supported for load balancers
                    # that have
                    # their loadBalancingScheme set to EXTERNAL.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                    # the request is passed along to the selected backendService.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                      # client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values
                          # that already
                          # exist for the header. If true, headerValue is set for the
                          # header, discarding any values that were set for that header.
                          #
                          # The default value is true,
                          # unless a variable is present in headerValue,
                          # in which case the default value is false.
                          # .
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                      # response before sending the response back to the client.
                    "A String",
                  ],
                },
                "httpFilterConfigs": [ # Outbound route specific configuration fornetworkservices.HttpFilter resources enabled by Traffic
                    # Director. httpFilterConfigs only applies for load balancers
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                    # more details.
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                  { # HttpFilterConfiguration supplies additional contextual settings
                      # for networkservices.HttpFilter resources enabled by Traffic
                      # Director.
                    "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                        # YAML formatted and only contain fields defined in the protobuf identified
                        # in configTypeUrl
                    "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                        # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                    "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                        # configuration belongs to. This name must be known to the xDS client.
                        # Example: envoy.wasm
                  },
                ],
                "httpFilterMetadata": [ # Outbound route specific  metadata supplied tonetworkservices.HttpFilter resources enabled by Traffic
                    # Director. httpFilterMetadata only applies for load balancers
                    # with loadBalancingScheme set toINTERNAL_SELF_MANAGED. See ForwardingRule for
                    # more details.
                    #
                    #  The only configTypeUrl supported istype.googleapis.com/google.protobuf.Struct
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy that
                    # has validateForProxyless field set to true.
                  { # HttpFilterConfiguration supplies additional contextual settings
                      # for networkservices.HttpFilter resources enabled by Traffic
                      # Director.
                    "config": "A String", # The configuration needed to enable thenetworkservices.HttpFilter resource. The configuration must be
                        # YAML formatted and only contain fields defined in the protobuf identified
                        # in configTypeUrl
                    "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the
                        # filter expects for its contextual settings, for example:type.googleapis.com/google.protobuf.Struct
                    "filterName": "A String", # Name of the networkservices.HttpFilter resource this
                        # configuration belongs to. This name must be known to the xDS client.
                        # Example: envoy.wasm
                  },
                ],
                "matchRules": [ # The list of criteria for matching attributes of a request to thisrouteRule. This list has OR semantics: the request matches
                    # this routeRule when any of thematchRules are satisfied. However predicates within
                    # a given matchRule have AND semantics. All predicates
                    # within a matchRule must match for the request to
                    # match the rule.
                  { # HttpRouteRuleMatch specifies a set of criteria for matching
                      # requests to an HttpRouteRule. All specified criteria must
                      # be satisfied for a match to occur.
                    "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the
                        # request must exactly match the value specified infullPathMatch after removing any query parameters and anchor
                        # that may be part of the original URL.
                        #
                        # fullPathMatch must be from 1 to 1024 characters.
                        #
                        # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                        # specified.
                    "headerMatches": [ # Specifies a list of header match criteria, all of which must match
                        # corresponding headers in the request.
                      { # matchRule criteria for request header matches.
                        "exactMatch": "A String", # The value should exactly match contents of exactMatch.
                            #
                            # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                        "headerName": "A String", # The name of the HTTP header to match.
                            #
                            # For matching against the HTTP request's authority, use a headerMatch
                            # with the header name ":authority".
                            #
                            # For matching a request's method, use the headerName ":method".
                            #
                            # When the URL map is bound to a target gRPC proxy that has
                            # the validateForProxyless field set to true, only
                            # non-binary
                            # user-specified custom metadata and the `content-type` header are supported.
                            # The following transport-level headers cannot be used in header matching
                            # rules:
                            # `:authority`, `:method`, `:path`, `:scheme`, `user-agent`,
                            # `accept-encoding`, `content-encoding`, `grpc-accept-encoding`,
                            # `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`,
                            # `grpc-timeout` and `grpc-trace-bin`.
                        "invertMatch": True or False, # If set to false, the headerMatch is considered a
                            # match if the preceding match criteria are met. If set to true,
                            # the headerMatch is considered a match if the preceding
                            # match criteria are NOT met.
                            #
                            # The default setting is false.
                        "prefixMatch": "A String", # The value of the header must start with the contents ofprefixMatch.
                            #
                            # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                        "presentMatch": True or False, # A header with the contents of headerName must exist. The
                            # match takes place whether or not the request's header has a value.
                            #
                            # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                        "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay # The header value must be an integer and its value must be in the range
                            # specified in rangeMatch. If the header does not contain an
                            # integer, number or is empty, the match fails.
                            #
                            # For example for a range [-5, 0]
                            #
                            #
                            #       - -3 will match.
                            #       - 0 will not match.
                            #       - 0.25 will not match.
                            #       - -3someString will not match.
                            #
                            # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                            #
                            # rangeMatch is not supported for load balancers
                            # that have loadBalancingScheme set to EXTERNAL.
                            # within the specified integer range.
                          "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                          "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                        },
                        "regexMatch": "A String", # The value of the header must match the regular expression specified inregexMatch.
                            # For more information about regular expression syntax, see Syntax.
                            #
                            # For matching against a port specified in the HTTP request, use a
                            # headerMatch with headerName set to PORT and a regular expression that
                            # satisfies the RFC2616 Host header's port specifier.
                            #
                            # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                            #
                            # Regular expressions can only be used when the loadBalancingScheme is
                            # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                            # (regional scope) or INTERNAL_MANAGED.
                        "suffixMatch": "A String", # The value of the header must end with the contents ofsuffixMatch.
                            #
                            # Only one of exactMatch, prefixMatch,suffixMatch, regexMatch,presentMatch or rangeMatch must be set.
                      },
                    ],
                    "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch
                        # matches are case sensitive.
                        #
                        # The default value is false.
                        #
                        # ignoreCase must not be used with regexMatch.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy.
                    "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing
                        # configuration to a limited set of xDS
                        # compliant clients. In their xDS requests to the load balancer, xDS clients
                        # present node
                        # metadata. When there is a match, the relevant routing configuration
                        # is made available to those proxies.
                        #
                        # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least one of thefilterLabels must match the corresponding label provided in
                        # the metadata. If its filterMatchCriteria is set to
                        # MATCH_ALL, then all of its filterLabels must match with
                        # corresponding labels provided in the metadata. If multiple
                        # metadata filters are specified, all of them need to be
                        # satisfied in order to be considered a match.
                        #
                        # metadataFilters specified here is applied after those
                        # specified in ForwardingRule that refers to theUrlMap this HttpRouteRuleMatch belongs to.
                        #
                        # metadataFilters only applies to load balancers that haveloadBalancingScheme set toINTERNAL_SELF_MANAGED.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has validateForProxyless field set to true.
                      { # Opaque filter criteria used by load balancers to restrict routing
                          # configuration to a limited set of load balancing proxies. Proxies and
                          # sidecars involved in load balancing would typically present metadata to the
                          # load balancers that need to match criteria specified here. If a match takes
                          # place, the relevant configuration is made available to those
                          # proxies.
                          #
                          # For each metadataFilter in this list, if itsfilterMatchCriteria is set to MATCH_ANY, at least
                          # one of thefilterLabels must match the corresponding label provided in
                          # the metadata. If its filterMatchCriteria is set to
                          # MATCH_ALL, then all of its filterLabels must match with
                          # corresponding labels provided in the metadata.
                          #
                          # An example for using metadataFilters would be: if
                          # load balancing involves
                          # Envoys, they receive routing configuration when values inmetadataFilters match values supplied in  of their XDS requests to loadbalancers.
                        "filterLabels": [ # The list of label value pairs that must match labels in the provided
                            # metadata based on filterMatchCriteria
                            #
                            # This list must not be empty and can have at the most 64 entries.
                          { # MetadataFilter label name value pairs that are expected
                              # to match corresponding labels presented as metadata to the load balancer.
                            "name": "A String", # Name of metadata label.
                                #
                                #  The name can have a maximum length of 1024 characters and must be at
                                # least 1 character long.
                            "value": "A String", # The value of the label must match the specified value.
                                #
                                # value can have a maximum length of 1024 characters.
                          },
                        ],
                        "filterMatchCriteria": "A String", # Specifies how individual filter label matches
                            # within the list of filterLabels and contributes toward the
                            # overall metadataFilter match.
                            #
                            #  Supported values are:
                            #
                            #    - MATCH_ANY: at least one of the filterLabels
                            #    must have a matching label in the provided metadata.
                            #    - MATCH_ALL: all filterLabels must have
                            #    matching labels in the provided metadata.
                      },
                    ],
                    "pathTemplateMatch": "A String", # If specified, this field defines a path template pattern that must match
                        # the :path header after the query string is removed.
                        #
                        # A path template pattern can include variables and wildcards.
                        # Variables are enclosed in curly braces, for example{variable_name}. Wildcards include * that
                        # matches a single path segment, and ** that matches zero or
                        # more path segments. The pattern must follow these rules:
                        #
                        #
                        #       - The value must be between 1 and 1024 characters.
                        #       - The pattern must start with a leading slash ("/").
                        #       - No more than 5 operators (variables or wildcards) may appear in
                        #       the pattern.
                        #
                        # Precisely one ofprefixMatch, fullPathMatch,regexMatch, or pathTemplateMatch must be
                        # set.
                    "prefixMatch": "A String", # For satisfying the matchRule condition, the request's
                        # path must begin with the specified prefixMatch.prefixMatch must begin with a /.
                        #
                        # The value must be from 1 to 1024 characters.
                        #
                        # The * character inside a prefix match is
                        # treated as a literal character, not as a wildcard.
                        #
                        # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match can be
                        # used within a matchRule.
                    "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must
                        # match corresponding query parameters in the request.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy.
                      { # HttpRouteRuleMatch criteria for a request's query parameter.
                        "exactMatch": "A String", # The queryParameterMatch matches if the value of the
                            # parameter exactly matches the contents of exactMatch.
                            #
                            # Only one of presentMatch, exactMatch, orregexMatch must be set.
                        "name": "A String", # The name of the query parameter to match. The query parameter must exist in
                            # the request, in the absence of which the request match fails.
                        "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the
                            # request contains the query parameter, irrespective of whether the
                            # parameter has a value or not.
                            #
                            # Only one of presentMatch, exactMatch, orregexMatch must be set.
                        "regexMatch": "A String", # The queryParameterMatch matches if the value of the
                            # parameter matches the regular expression specified byregexMatch. For
                            # more information about regular expression syntax, see Syntax.
                            #
                            # Only one of presentMatch, exactMatch, orregexMatch must be set.
                            #
                            # Regular expressions can only be used when the loadBalancingScheme is
                            # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                            # (regional scope) or INTERNAL_MANAGED.
                      },
                    ],
                    "regexMatch": "A String", # For satisfying the matchRule condition, the path of the
                        # request must satisfy the regular expression specified inregexMatch after removing any query parameters and anchor
                        # supplied with the original URL. For
                        # more information about regular expression syntax, see Syntax.
                        #
                        # Only one of prefixMatch, fullPathMatch,regexMatch or path_template_match must be
                        # specified.
                        #
                        # Regular expressions can only be used when the loadBalancingScheme is
                        # set to INTERNAL_SELF_MANAGED, EXTERNAL_MANAGED
                        # (regional scope) or INTERNAL_MANAGED.
                  },
                ],
                "priority": 42, # For routeRules within a given pathMatcher,
                    # priority determines the order in which a load balancer interpretsrouteRules. RouteRules are evaluated in order
                    # of priority, from the lowest to highest number. The priority of a
                    # rule decreases as its number increases (1, 2, 3, N+1). The first rule
                    # that matches the request is applied.
                    #
                    #
                    # You cannot configure two or more routeRules with the same priority.
                    # Priority for each rule must be set to a number from 0 to 2147483647
                    # inclusive.
                    #
                    #
                    # Priority numbers can have gaps, which enable you to add or remove rules
                    # in the future without affecting the rest of the rules. For example, 1, 2,
                    # 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you
                    # could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future
                    # without any impact on existing rules.
                "routeAction": { # In response to a matching matchRule, the load balancer
                    # performs advanced routing actions, such as URL rewrites and header
                    # transformations, before forwarding the request to the selected backend.
                    #
                    #
                    # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                    #
                    #
                    # URL maps for classic Application Load Balancers only support
                    # the urlRewrite action within a route rule'srouteAction.
                  "cachePolicy": { # Message containing CachePolicy configuration for URL Map's Route Action. # Specifies the cache policy configuration for matched traffic. Available
                      # only for Global `EXTERNAL_MANAGED` load balancer schemes. At least one
                      # property must be specified. This policy cannot be specified if any target
                      # backend has Identity-Aware Proxy enabled.
                    "cacheBypassRequestHeaderNames": [ # Bypass the cache when the specified request headers are matched by name,
                        # e.g. Pragma or Authorization headers. Values are case-insensitive. Up to 5
                        # header names can be specified. The cache is bypassed for all `cacheMode`
                        # values.
                      "A String",
                    ],
                    "cacheKeyPolicy": { # Message containing what to include in the cache key for a request for Cache # The cache key configuration. If not specified, the default behavior depends
                        # on the backend type: for Backend Services, the complete request URI is
                        # used; for Backend Buckets, the request URI is used without the protocol or
                        # host, and only query parameters known to Cloud Storage are included.
                        # Policy defined on Route Action.
                      "excludedQueryParameters": [ # Names of query string parameters to exclude in cache keys. All other
                          # parameters will be included. Either specify `excludedQueryParameters`
                          # or `includedQueryParameters`, not both. '&' and '=' will be percent
                          # encoded and not treated as delimiters.
                          #
                          # Note: This field applies to routes that use backend services. Attempting
                          # to set it on a route that points exclusively to Backend Buckets will
                          # result in a configuration error. For routes that point to a Backend
                          # Bucket, use `includedQueryParameters` to define which parameters should
                          # be part of the cache key.
                        "A String",
                      ],
                      "includeHost": True or False, # If true, requests to different hosts will be cached separately.
                          #
                          # Note: This setting is only applicable to routes that use a Backend
                          # Service. It does not affect requests served by a Backend Bucket, as the
                          # host is never included in a Backend Bucket's cache key. Attempting to set
                          # it on a route that points exclusively to Backend Buckets will result in a
                          # configuration error.
                      "includeProtocol": True or False, # If true, http and https requests will be cached separately.
                          #
                          # Note: This setting is only applicable to routes that use a Backend
                          # Service. It does not affect requests served by a Backend Bucket, as the
                          # protocol is never included in a Backend Bucket's cache key. Attempting to
                          # set on a route that points exclusively to Backend Buckets will result in
                          # a configuration error.
                      "includeQueryString": True or False, # If true, include query string parameters in the cache key according to
                          # `includedQueryParameters` and `excludedQueryParameters`. If neither
                          # is set, the entire query string will be included. If false, the query
                          # string will be excluded from the cache key entirely.
                          #
                          # Note: This field applies to routes that use backend services. Attempting
                          # to set it on a route that points exclusively to Backend Buckets will
                          # result in a configuration error. For routes that point to a Backend
                          # Bucket, use `includedQueryParameters` to define which parameters should
                          # be part of the cache key.
                      "includedCookieNames": [ # Allows HTTP cookies (by name) to be used in the cache key.
                          # The name=value pair will be used in the cache key Cloud CDN generates.
                          #
                          # Note: This setting is only applicable to routes that use a Backend
                          # Service. It does not affect requests served by a Backend Bucket.
                          # Attempting to set it on a route that points exclusively to Backend
                          # Buckets will result in a configuration error. Up to 5 cookie names can be
                          # specified.
                        "A String",
                      ],
                      "includedHeaderNames": [ # Allows HTTP request headers (by name) to be used in the cache key.
                        "A String",
                      ],
                      "includedQueryParameters": [ # Names of query string parameters to include in cache keys. All other
                          # parameters will be excluded. Either specify `includedQueryParameters`
                          # or `excludedQueryParameters`, not both. '&' and '=' will be percent
                          # encoded and not treated as delimiters.
                        "A String",
                      ],
                    },
                    "cacheMode": "A String", # Specifies the cache setting for all responses from this route. If not
                        # specified, Cloud CDN uses `CACHE_ALL_STATIC` mode.
                    "clientTtl": { # A Duration represents a fixed-length span of time represented # Specifies a separate client (e.g. browser client) maximum TTL for cached
                        # content. This is used to clamp the max-age (or Expires) value sent to the
                        # client. With `FORCE_CACHE_ALL`, the lesser of `clientTtl` and `defaultTtl`
                        # is used for the response max-age directive, along with a "public"
                        # directive. For cacheable content in `CACHE_ALL_STATIC` mode, `clientTtl`
                        # clamps the max-age from the origin (if specified), or else sets the
                        # response max-age directive to the lesser of the `clientTtl` and
                        # `defaultTtl`, and also ensures a "public" cache-control directive is
                        # present. The maximum allowed value is 31,622,400s (1 year). If not
                        # specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` mode.
                        # Cannot exceed `maxTtl`. Cannot be specified when `cacheMode` is
                        # `USE_ORIGIN_HEADERS`.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "defaultTtl": { # A Duration represents a fixed-length span of time represented # Specifies the default TTL for cached content for responses that do not have
                        # an existing valid TTL (max-age or s-maxage). Setting a TTL of "0" means
                        # "always revalidate". The value of `defaultTtl` cannot be set to a value
                        # greater than that of `maxTtl`. When the `cacheMode` is set to
                        # `FORCE_CACHE_ALL`, the `defaultTtl` will overwrite the TTL set in all
                        # responses. The maximum allowed value is 31,622,400s (1 year). Infrequently
                        # accessed objects may be evicted from the cache before the defined TTL. If
                        # not specified, Cloud CDN uses 3600s (1 hour) for `CACHE_ALL_STATIC` and
                        # `FORCE_CACHE_ALL` modes. Cannot be specified when `cacheMode` is
                        # `USE_ORIGIN_HEADERS`.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "maxTtl": { # A Duration represents a fixed-length span of time represented # Specifies the maximum allowed TTL for cached content. Cache directives that
                        # attempt to set a max-age or s-maxage higher than this, or an Expires header
                        # more than `maxTtl` seconds in the future will be capped at the value of
                        # `maxTtl`, as if it were the value of an s-maxage Cache-Control directive.
                        # Headers sent to the client will not be modified. Setting a TTL of "0" means
                        # "always revalidate". The maximum allowed value is 31,622,400s (1 year).
                        # Infrequently accessed objects may be evicted from the cache before the
                        # defined TTL. If not specified, Cloud CDN uses 86400s (1 day) for
                        # `CACHE_ALL_STATIC` mode. Can be specified only for `CACHE_ALL_STATIC` cache
                        # mode.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "negativeCaching": True or False, # Negative caching allows per-status code TTLs to be set, in order
                        # to apply fine-grained caching for common errors or redirects.
                        # This can reduce the load on your origin and improve end-user
                        # experience by reducing response latency.
                        # When the `cacheMode` is set to `CACHE_ALL_STATIC` or
                        # `USE_ORIGIN_HEADERS`, negative caching applies to responses with
                        # the specified response code that lack any Cache-Control, Expires, or
                        # Pragma: no-cache directives. When the `cacheMode` is set to
                        # `FORCE_CACHE_ALL`, negative caching applies to all responses
                        # with the specified response code, and overrides any caching headers. By
                        # default, Cloud CDN applies the following TTLs to these HTTP status codes:
                        #
                        # * 300 (Multiple Choice), 301, 308 (Permanent Redirects): 10m
                        # * 404 (Not Found), 410 (Gone), 451 (Unavailable For Legal Reasons): 120s
                        # * 405 (Method Not Found), 501 (Not Implemented): 60s
                        #
                        # These defaults can be overridden in `negativeCachingPolicy`.
                        # If not specified, Cloud CDN applies negative caching by default.
                    "negativeCachingPolicy": [ # Sets a cache TTL for the specified HTTP status code.
                        # `negativeCaching` must be enabled to configure `negativeCachingPolicy`.
                        # Omitting the policy and leaving `negativeCaching` enabled will use Cloud
                        # CDN's default cache TTLs. Note that when specifying an explicit
                        # `negativeCachingPolicy`, you should take care to specify a cache TTL for
                        # all response codes that you wish to cache. Cloud CDN will not apply any
                        # default negative caching when a policy exists.
                      { # Specify CDN TTLs for response error codes.
                        "code": 42, # The HTTP status code to define a TTL against. Only HTTP status codes
                            # 300, 301, 302, 307, 308, 404, 405, 410, 421, 451 and 501 can be
                            # specified as values, and you cannot specify a status code more than
                            # once.
                        "ttl": { # A Duration represents a fixed-length span of time represented # The TTL (in seconds) for which to cache responses with the
                            # corresponding status code.
                            # The maximum allowed value is 1800s (30 minutes). Infrequently accessed
                            # objects may be evicted from the cache before the defined TTL.
                            # as a count of seconds and fractions of seconds at nanosecond
                            # resolution. It is independent of any calendar and concepts like "day"
                            # or "month". Range is approximately 10,000 years.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                              # Durations less than one second are represented with a 0
                              # `seconds` field and a positive `nanos` field. Must be from 0
                              # to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                              # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                              # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                      },
                    ],
                    "requestCoalescing": True or False, # If true then Cloud CDN will combine multiple concurrent cache fill
                        # requests into a small number of requests to the origin. If not specified,
                        # Cloud CDN applies request coalescing by default.
                    "serveWhileStale": { # A Duration represents a fixed-length span of time represented # Serve existing content from the cache (if available) when revalidating
                        # content with the origin, or when an error is encountered when refreshing
                        # the cache.
                        # This setting defines the default "max-stale" duration for any cached
                        # responses that do not specify a max-stale directive. Stale responses that
                        # exceed the TTL configured here will not be served. The default limit
                        # (max-stale) is 86400s (1 day), which will allow stale content to be
                        # served up to this limit beyond the max-age (or s-maxage) of a cached
                        # response.
                        # The maximum allowed value is 604800 (1 week).
                        # Set this to zero (0) to disable serve-while-stale.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                  },
                  "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more # The specification for allowing client-side cross-origin requests. For more
                      # information about the W3C recommendation for cross-origin resource sharing
                      # (CORS), see Fetch API Living
                      # Standard.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy.
                      # information about the W3C recommendation for cross-origin resource sharing
                      # (CORS), see Fetch API Living
                      # Standard.
                    "allowCredentials": True or False, # In response to a preflight request, setting this to true
                        # indicates that
                        # the actual request can include user credentials. This field translates to
                        # the Access-Control-Allow-Credentials header.
                        #
                        # Default is false.
                    "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers
                        # header.
                      "A String",
                    ],
                    "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods
                        # header.
                      "A String",
                    ],
                    "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For
                        # more information, see regular expression syntax.
                        #
                        # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                        #
                        # Regular expressions can only be used when the loadBalancingScheme is
                        # set to INTERNAL_SELF_MANAGED.
                      "A String",
                    ],
                    "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests.
                        #
                        # An origin is allowed if it matches either an item inallowOrigins or an item inallowOriginRegexes.
                      "A String",
                    ],
                    "disabled": True or False, # If true, disables the CORS policy.
                        # The default value is false, which indicates that the CORS
                        # policy is in effect.
                    "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers
                        # header.
                      "A String",
                    ],
                    "maxAge": 42, # Specifies how long results of a preflight request can be cached in
                        # seconds. This field translates to the Access-Control-Max-Age
                        # header.
                  },
                  "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test # The specification for fault injection introduced into traffic to test
                      # the resiliency of clients to backend service failure. As part of fault
                      # injection, when clients send requests to a backend service, delays can be
                      # introduced by a load balancer on a percentage of requests before sending
                      # those requests to the backend service. Similarly requests from clients can
                      # be aborted by the load balancer for a percentage of requests.timeout and retry_policy is ignored by clients
                      # that are configured with a fault_injection_policy if:
                      # 1. The traffic is generated by fault injection AND
                      # 2. The fault injection is not a delay fault injection.
                      # Fault injection is not supported with the classic Application Load Balancer
                      # . To see which load balancers support fault injection,
                      # see Load
                      # balancing: Routing and traffic management features.
                      # the resiliency of clients to backend service failure. As part of fault
                      # injection, when clients send requests to a backend service, delays can be
                      # introduced by the load balancer on a percentage of requests before sending
                      # those request to the backend service. Similarly requests from clients can be
                      # aborted by the load balancer for a percentage of requests.
                    "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault
                        # injection.
                      "httpStatus": 42, # The HTTP status code used to abort the request.
                          #
                          # The value must be from 200 to 599 inclusive.
                          #
                          # For gRPC protocol, the gRPC status code is mapped to HTTP status code
                          # according to this
                          # mapping table. HTTP status 200 is mapped to gRPC status
                          # UNKNOWN. Injecting an OK status is currently not supported by
                          # Traffic Director.
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests
                          # that is aborted as part of fault injection.
                          #
                          # The value must be from 0.0 to 100.0 inclusive.
                    },
                    "delay": { # Specifies the delay introduced by the load balancer before forwarding the # The specification for how client requests are delayed as part of fault
                        # injection, before being sent to a backend service.
                        # request to the backend service as part of fault injection.
                      "fixedDelay": { # A Duration represents a fixed-length span of time represented # Specifies the value of the fixed delay interval.
                          # as a count of seconds and fractions of seconds at nanosecond
                          # resolution. It is independent of any calendar and concepts like "day"
                          # or "month". Range is approximately 10,000 years.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                            # Durations less than one second are represented with a 0
                            # `seconds` field and a positive `nanos` field. Must be from 0
                            # to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                            # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                            # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for
                          # which a delay is introduced as part of fault injection.
                          #
                          # The value must be from 0.0 to 100.0 inclusive.
                    },
                  },
                  "imageOptimizationPolicy": { # The configuration for Cloud CDN's image optimization feature. This feature # Image optimization policy for this URL Map's route. Available only for
                      # Global EXTERNAL_MANAGED load balancer schemes.
                      # Either Cloud CDN must be enabled on the backend service or backend bucket
                      # serving the route, or cache policy must be configured on the same route
                      # dynamically processes and delivers images from the network edge.
                      # Image Optimization is only available for Global External Application Load
                      # Balancers.
                      # Either Cloud CDN must be enabled on the backend service or backend bucket
                      # serving the route, or cache policy must be configured on the same route.
                    "queryParameterInterpretation": "A String", # Specifies whether to interpret query parameters for image optimization.
                  },
                  "maxStreamDuration": { # A Duration represents a fixed-length span of time represented # Specifies the maximum duration (timeout) for streams on the selected route.
                      # Unlike the timeout field where the timeout duration starts
                      # from the time the request has been fully processed (known as*end-of-stream*),
                      # the duration in this field is computed from the beginning of the stream
                      # until the response has been processed, including all retries. A
                      # stream that does not complete in this duration is closed.
                      #
                      # If not specified, this field uses the maximummaxStreamDuration value among all backend services associated
                      # with the route.
                      #
                      # This field is only allowed if the Url map is used with backend services
                      # with loadBalancingScheme set toINTERNAL_SELF_MANAGED.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends # Specifies the policy on how requests intended for the route's backends
                      # are shadowed to a separate mirrored backend service. The load balancer does
                      # not wait for responses from the shadow service. Before sending traffic
                      # to the shadow service, the host / authority header is suffixed with-shadow.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # are shadowed to a separate mirrored backend service. The load balancer
                      # doesn't wait for responses from the shadow service. Before sending traffic
                      # to the shadow service, the host or authority header is suffixed with-shadow.
                    "backendService": "A String", # The full or partial URL to the BackendService resource being
                        # mirrored to.
                        #
                        # The backend service configured for a mirroring
                        # policy must reference backends that are of the same type as the original
                        # backend service matched in the URL map.
                        #
                        # Serverless NEG backends are not currently supported as a mirrored
                        # backend service.
                    "mirrorPercent": 3.14, # The percentage of requests to be mirrored to `backend_service`.
                  },
                  "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                    "numRetries": 42, # Specifies the allowed number retries. This number must be > 0.
                        # If not specified, defaults to 1.
                    "perTryTimeout": { # A Duration represents a fixed-length span of time represented # Specifies a non-zero timeout per retry attempt.
                        #
                        # If not specified, will use the timeout set in theHttpRouteAction field.
                        # If timeout in the HttpRouteAction field is not set, this field
                        # uses the largest timeout
                        # among all backend services associated with the route.
                        #
                        # Not supported when the URL map is bound to a target gRPC proxy that
                        # has the validateForProxyless field set to true.
                        # as a count of seconds and fractions of seconds at nanosecond
                        # resolution. It is independent of any calendar and concepts like "day"
                        # or "month". Range is approximately 10,000 years.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                          # Durations less than one second are represented with a 0
                          # `seconds` field and a positive `nanos` field. Must be from 0
                          # to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                          # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                          # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid
                        # values are:
                        #
                        #    - 5xx: retry is attempted if the instance or endpoint
                        #    responds with any 5xx response code, or if the instance or
                        #    endpoint does not respond at all. For example, disconnects, reset, read
                        #    timeout, connection failure, and refused streams.
                        #    - gateway-error: Similar to 5xx, but only
                        #    applies to response codes 502, 503 or504.
                        #    - connect-failure: a retry is attempted on failures
                        #    connecting to the instance or endpoint. For example, connection
                        #    timeouts.
                        #    - retriable-4xx: a retry is attempted if the instance
                        #    or endpoint responds with a 4xx response code.
                        #    The only error that you can retry is error code 409.
                        #    - refused-stream: a retry is attempted if the instance
                        #    or endpoint resets the stream with a REFUSED_STREAM error
                        #    code. This reset type indicates that it is safe to retry.
                        #    - cancelled: a retry is attempted if the gRPC status
                        #    code in the response header is set to cancelled.
                        #    - deadline-exceeded: a retry is attempted if the gRPC
                        #    status code in the response header is set todeadline-exceeded.
                        #    - internal: a retry is attempted if the gRPC
                        #    status code in the response header is set tointernal.
                        #    - resource-exhausted: a retry is attempted if the gRPC
                        #    status code in the response header is set toresource-exhausted.
                        #    - unavailable: a retry is attempted if the gRPC
                        #    status code in the response header is set tounavailable.
                        #
                        # Only the following codes are supported when the URL map is bound to
                        # target gRPC proxy that has validateForProxyless field set to true.
                        #
                        #    - cancelled
                        #    - deadline-exceeded
                        #    - internal
                        #    - resource-exhausted
                        #    - unavailable
                      "A String",
                    ],
                  },
                  "timeout": { # A Duration represents a fixed-length span of time represented # Specifies the timeout for the selected route. Timeout is computed from the
                      # time the request has been fully processed (known as *end-of-stream*)
                      # up until the response has been processed. Timeout includes
                      # all retries.
                      #
                      # If not specified, this field uses the largest timeout among all backend
                      # services associated with the route.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has validateForProxyless field set to true.
                      # as a count of seconds and fractions of seconds at nanosecond
                      # resolution. It is independent of any calendar and concepts like "day"
                      # or "month". Range is approximately 10,000 years.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution.
                        # Durations less than one second are represented with a 0
                        # `seconds` field and a positive `nanos` field. Must be from 0
                        # to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0
                        # to 315,576,000,000 inclusive. Note: these bounds are computed from:
                        # 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "urlRewrite": { # The spec for modifying the path before sending the request to the matched # The spec to modify the URL of the request, before forwarding the request
                      # to the matched service.
                      #
                      #  urlRewrite is the only action supported in UrlMaps
                      # for classic Application Load Balancers.
                      #
                      # Not supported when the URL map is bound to a target gRPC proxy that
                      # has the validateForProxyless field set to true.
                      # backend service.
                    "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's
                        # host header is replaced with contents of hostRewrite.
                        #
                        # The value must be from 1 to 255 characters.
                    "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the
                        # matching portion of the request's path is replaced bypathPrefixRewrite.
                        #
                        # The value must be from 1 to 1024 characters.
                    "pathTemplateRewrite": "A String", # If specified, the pattern rewrites the URL path (based on the :path
                        # header) using the HTTP template syntax.
                        #
                        # A corresponding
                        # path_template_match must be specified. Any template variables must exist in
                        # the path_template_match field.
                        #
                        #
                        #       - -At least one variable must be specified in the path_template_match
                        #       field
                        #    - You can omit variables from the rewritten URL
                        #       - The * and ** operators cannot be matched
                        #       unless they have a corresponding variable name - e.g.
                        #       {format=*} or {var=**}.
                        #
                        # For example, a path_template_match of /static/{format=**}
                        # could be rewritten as /static/content/{format} to prefix/content to the URL. Variables can also be re-ordered in a
                        # rewrite, so that /{country}/{format}/{suffix=**} can be
                        # rewritten as /content/{format}/{country}/{suffix}.
                        #
                        # At least
                        # one non-empty routeRules[].matchRules[].path_template_match is
                        # required.
                        #
                        # Only one of path_prefix_rewrite orpath_template_rewrite may be specified.
                    "regexRewrite": { # The spec for modifying the path using a regular expression. # The regex rewrite to be applied to the URL. Only one ofpathPrefixRewrite, pathTemplateRewrite, orregexRewrite may be specified.
                      "pathPattern": "A String", # The regular expression used to match against the URL path.
                          # It uses RE2 syntax with the following constraints:
                          #
                          #
                          #      - Any single character operators
                          #      - Groups are allowed to have only submatch operator inside
                          #      - Groups are allowed only without any char repetition, e.g.
                          #      .*
                          #      - Any char repetition, e.g. .*, is
                          #      only allowed to be used in a single regex together with:
                          #
                          #
                          #             - Empty string operators
                          #             - Other repetitions
                          #             - Ranges
                          #             - Repetitions of ranges
                          #
                          #
                          #      - Ranges are only allowed to have:
                          #
                          #
                          #             - Character range
                          #             - Digits range
                          #             - Symbols listed in characters allowed for ranges
                      "pathSubstitution": "A String", # Required when path pattern is specified. Used to rewrite matching parts of
                          # the path.
                    },
                  },
                  "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match
                      # occurs. The weights determine the fraction of traffic that flows to
                      # their corresponding backend service. If all traffic needs to
                      # go to a single backend service, there must be oneweightedBackendService with weight set to a non-zero number.
                      #
                      # After a backend service is identified and before forwarding
                      # the request to
                      # the backend service, advanced routing actions such as URL rewrites and
                      # header transformations are applied depending on additional settings
                      # specified in this HttpRouteAction.
                    { # In contrast to a single BackendService in
                        # HttpRouteAction to which all matching traffic is directed to,WeightedBackendService allows traffic to be split across
                        # multiple backend services. The volume of traffic for each
                        # backend service is proportional to the weight specified
                        # in each WeightedBackendService
                      "backendService": "A String", # The full or partial URL to the default BackendService
                          # resource. Before
                          # forwarding the request to backendService, the load balancer
                          # applies any relevant headerActions specified as part of thisbackendServiceWeight.
                      "headerAction": { # The request and response header transformations that take effect before # Specifies changes to request and response headers that need to take
                          # effect for the selected backendService.
                          #
                          # headerAction specified here take effect beforeheaderAction in the enclosing HttpRouteRule,PathMatcher and UrlMap.
                          #
                          # headerAction is not supported for load balancers that have
                          # their loadBalancingScheme set to EXTERNAL.
                          #
                          # Not supported when the URL map is bound to a target gRPC proxy that
                          # has validateForProxyless field set to true.
                          # the request is passed along to the selected backendService.
                        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to thebackendService.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values
                                # that already
                                # exist for the header. If true, headerValue is set for the
                                # header, discarding any values that were set for that header.
                                #
                                # The default value is true,
                                # unless a variable is present in headerValue,
                                # in which case the default value is false.
                                # .
                          },
                        ],
                        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                            # request before forwarding the request to the backendService.
                          "A String",
                        ],
                        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the
                            # client.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values
                                # that already
                                # exist for the header. If true, headerValue is set for the
                                # header, discarding any values that were set for that header.
                                #
                                # The default value is true,
                                # unless a variable is present in headerValue,
                                # in which case the default value is false.
                                # .
                          },
                        ],
                        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the
                            # response before sending the response back to the client.
                          "A String",
                        ],
                      },
                      "weight": 42, # Specifies the fraction of traffic sent to a backend service,
                          # computed asweight / (sum of all weightedBackendService weights in routeAction).
                          #
                          # The selection of a backend service is determined only for new traffic.
                          # Once a user's request has been directed to a backend service,
                          # subsequent requests are sent to the same backend service as
                          # determined by the backend service's session affinity policy.
                          # Don't configure session affinity if you're using weighted traffic
                          # splitting. If you do, the weighted traffic splitting configuration takes
                          # precedence.
                          #
                          # The value must be from 0 to 1000.
                    },
                  ],
                },
                "service": "A String", # The full or partial URL of the backend service resource to which traffic
                    # is directed if this rule is matched. If routeAction is
                    # also specified, advanced routing actions, such as URL rewrites,
                    # take effect before sending the request to the backend.
                    #
                    #
                    # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL
                    # specified by urlRedirect.
                    #
                    #
                    # Only one of urlRedirect, service orrouteAction.weightedBackendService can be set.
                    #
                    #
                    # Not supported when the URL map is bound to a target gRPC proxy.
                  "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that
                      # was supplied in the request.
                      #
                      # The value must be from 1 to 255
                      # characters.
                  "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is
                      # set to HTTPS.
                      # If set to false, the URL scheme of the redirected request
                      # remains the same as that of the request.
                      #
                      # This must only be set for URL maps used inTargetHttpProxys. Setting this true forTargetHttpsProxy is not permitted.
                      #
                      # The default is set to false.
                  "pathRedirect": "A String", # The path that is used in the redirect response instead of the one
                      # that was supplied in the request.
                      #
                      # pathRedirect cannot be supplied together withprefixRedirect. Supply one alone or neither. If neither is
                      # supplied, the path of the original request is used for the redirect.
                      #
                      # The value must be from 1 to 1024 characters.
                  "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in
                      # the HttpRouteRuleMatch, retaining the remaining portion
                      # of the URL before redirecting the request.
                      #
                      # prefixRedirect cannot be supplied together withpathRedirect. Supply one alone or neither. If neither is
                      # supplied, the path of the original request is used for the redirect.
                      #
                      # The value must be from 1 to 1024 characters.
                  "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction.
                      #
                      # Supported values are:
                      #
                      #    - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds
                      #    to 301.
                      #    - FOUND, which corresponds to 302.
                      #    - SEE_OTHER which corresponds to 303.
                      #    - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request
                      #    method is retained.
                      #    - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request
                      #    method is retained.
                  "stripQuery": True or False, # If set to true, any accompanying query portion of the original
                      # URL is
                      # removed before redirecting the request. If set to false, the
                      # query portion of the original URL is retained.
                      #
                      # The default is set to false.
                },
              },
            ],
          },
        ],
        "region": "A String", # Output only. [Output Only] URL of the region where the regional URL map resides.
            # This field is not applicable to global URL maps.
            # You must specify this field as part of the HTTP request URL. It is
            # not settable as a field in the request body.
        "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
        "status": { # [Output Only] The status of the URL map. # Output only. [Output Only] The status of the URL map.
          "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
            "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
            "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
          },
        },
        "tests": [ # The list of expected URL mapping tests. Request to update theUrlMap succeeds only if all test cases pass. You can specify a
            # maximum of 100 tests per UrlMap.
            #
            # Not supported when the URL map is bound to a target gRPC proxy that
            # has validateForProxyless field set to true.
          { # Message for the expected URL mappings.
            "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced
                # routing rules that involve traffic splitting.
            "description": "A String", # Description of this test case.
            "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer
                # containing the scheme, host, path and query parameters.
                #
                # For rules that forward requests to backends, the test passes only whenexpectedOutputUrl matches the request forwarded by
                # the load balancer to backends. For rules with urlRewrite,
                # the test verifies that the forwarded request matcheshostRewrite and pathPrefixRewrite in theurlRewrite action. When service is specified,expectedOutputUrl`s scheme is ignored.
                #
                # For rules with urlRedirect, the test passes only ifexpectedOutputUrl matches the URL in the load balancer's
                # redirect response. If urlRedirect specifieshttps_redirect, the test passes only if the scheme inexpectedOutputUrl is also set to HTTPS.
                # If urlRedirect specifies strip_query, the test
                # passes only if expectedOutputUrl does not contain any query
                # parameters.
                #
                # expectedOutputUrl is optional whenservice is specified.
            "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only ifexpectedRedirectResponseCode matches the HTTP status code in
                # load balancer's redirect response.
                #
                # expectedRedirectResponseCode cannot be set whenservice is set.
            "expectedUrlRedirect": "A String", # The expected URL that should  be redirected to for the host and path
                # being tested.
                # [Deprecated] This field is deprecated.
                # Use expected_output_url instead.
            "headers": [ # HTTP headers for this request. If headers contains
                # a host header, then host must also match the header value.
              { # HTTP headers used in UrlMapTests.
                "name": "A String", # Header name.
                "value": "A String", # Header value.
              },
            ],
            "host": "A String", # Host portion of the URL. If headers contains a host header,
                # then host must also match the header value.
            "path": "A String", # Path portion of the URL.
            "service": "A String", # Expected BackendService or BackendBucket resource
                # the given URL should be mapped to.
                #
                # The service field cannot
                # be set if expectedRedirectResponseCode is set.
          },
        ],
      },
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        {
      "result": { # Message representing the validation result for a UrlMap.
        "loadErrors": [
          "A String",
        ],
        "loadSucceeded": True or False, # Whether the given UrlMap can be successfully loaded.
            # If false, 'loadErrors' indicates the reasons.
        "quotaUsage": { # Message representing the quota usage for a UrlMap. # Output only. Summary of quota usage for given UrlMap.
          "forwardingRules": 42, # Output only. The number of forwarding rules that uses this UrlMap.
          "units": "A String", # Output only. The number of quota units calculated for this UrlMap.
        },
        "testFailures": [
          {
            "actualOutputUrl": "A String", # The actual output URL evaluated by a load balancer containing the scheme,
                # host, path and query parameters.
            "actualRedirectResponseCode": 42, # Actual HTTP status code for rule with `urlRedirect`
                # calculated by load balancer
            "actualService": "A String", # BackendService or BackendBucket returned by load
                # balancer.
            "expectedOutputUrl": "A String", # The expected output URL evaluated by a load balancer containing the scheme,
                # host, path and query parameters.
            "expectedRedirectResponseCode": 42, # Expected HTTP status code for rule with `urlRedirect`
                # calculated by load balancer
            "expectedService": "A String", # Expected BackendService or BackendBucket resource
                # the given URL should be mapped to.
            "headers": [ # HTTP headers of the request.
              { # HTTP headers used in UrlMapTests.
                "name": "A String", # Header name.
                "value": "A String", # Header value.
              },
            ],
            "host": "A String", # Host portion of the URL.
            "path": "A String", # Path portion including query parameters in the URL.
          },
        ],
        "testPassed": True or False, # If successfully loaded, this field indicates whether the test passed.
            # If false, 'testFailures's indicate the reason of failure.
      },
    }