# App Engine Admin API . apps . services . versions

## Instance Methods

Returns the instances Resource.

Deploys code and resource files to a new version.

Deletes an existing Version resource.

Gets the specified Version resource. By default, only a BASIC_VIEW will be returned. Specify the FULL_VIEW parameter to get the full resource.

Lists the versions of a service.

Retrieves the next page of results.

Updates the specified Version resource. You can specify the following fields depending on the App Engine environment and type of scaling that the version resource uses:Standard environment

### Method Details

`create(appsId, servicesId, body, x__xgafv=None)`

    Deploys code and resource files to a new version.

    Args:
      appsId: string, Part of `parent`. Name of the parent resource to create this version under. Example: apps/myapp/services/default. (required)
      servicesId: string, Part of `parent`. See documentation of `appsId`. (required)
      body: object, The request body. (required)
        The object takes the form of:

    { # A Version resource is a specific set of source code and configuration files that are deployed into a service.
        "endpointsApiService": { # Cloud Endpoints (https://cloud.google.com/endpoints) configuration. The Endpoints API Service provides tooling for serving Open API and gRPC endpoints via an NGINX proxy. Only valid for App Engine Flexible environment deployments.The fields here refer to the name and configuration ID of a "service" resource in the Service Management API (https://cloud.google.com/service-management/overview). # Cloud Endpoints configuration.If endpoints_api_service is set, the Cloud Endpoints Extensible Service Proxy will be provided to serve the API implemented by the app.
          "configId": "A String", # Endpoints service configuration ID as specified by the Service Management API. For example "2016-09-19r1".By default, the rollout strategy for Endpoints is RolloutStrategy.FIXED. This means that Endpoints starts up with a particular configuration ID. When a new configuration is rolled out, Endpoints must be given the new configuration ID. The config_id field is used to give the configuration ID and is required in this case.Endpoints also has a rollout strategy called RolloutStrategy.MANAGED. When using this, Endpoints fetches the latest configuration and does not need the configuration ID. In this case, config_id must be omitted.
          "rolloutStrategy": "A String", # Endpoints rollout strategy. If FIXED, config_id must be specified. If MANAGED, config_id must be omitted.
          "disableTraceSampling": True or False, # Enable or disable trace sampling. By default, this is set to false for enabled.
          "name": "A String", # Endpoints service name which is the name of the "service" resource in the Service Management API. For example "myapi.endpoints.myproject.cloud.goog"
        },
        "defaultExpiration": "A String", # Duration that static files should be cached by web proxies and browsers. Only applicable if the corresponding StaticFilesHandler (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StaticFilesHandler) does not specify its own expiration time.Only returned in GET requests if view=FULL is set.
        "basicScaling": { # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity. # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity.
          "idleTimeout": "A String", # Duration of time after the last request that an instance must wait before the instance is shut down.
          "maxInstances": 42, # Maximum number of instances to create for this version.
        },
        "vm": True or False, # Whether to deploy this version in a container on a virtual machine.
        "zones": [ # The Google Compute Engine zones that are supported by this version in the App Engine flexible environment. Deprecated.
          "A String",
        ],
        "instanceClass": "A String", # Instance class that is used to run this version. Valid values are:
            # AutomaticScaling: F1, F2, F4, F4_1G
            # ManualScaling or BasicScaling: B1, B2, B4, B8, B4_1GDefaults to F1 for AutomaticScaling and B1 for ManualScaling or BasicScaling.
        "errorHandlers": [ # Custom static error pages. Limited to 10KB per page.Only returned in GET requests if view=FULL is set.
          { # Custom static error page to be served when an error occurs.
            "errorCode": "A String", # Error condition this handler applies to.
            "mimeType": "A String", # MIME type of file. Defaults to text/html.
            "staticFile": "A String", # Static file content to be served for this error.
          },
        ],
        "versionUrl": "A String", # Serving URL for this version. Example: "https://myversion-dot-myservice-dot-myapp.appspot.com"@OutputOnly
        "readinessCheck": { # Readiness checking configuration for VM instances. Unhealthy instances are removed from traffic rotation. # Configures readiness health checking for instances. Unhealthy instances are not put into the backend traffic rotation.Only returned in GET requests if view=FULL is set.
          "checkInterval": "A String", # Interval between health checks.
          "host": "A String", # Host header to send when performing a HTTP Readiness check. Example: "myapp.appspot.com"
          "appStartTimeout": "A String", # A maximum time limit on application initialization, measured from moment the application successfully replies to a healthcheck until it is ready to serve traffic.
          "timeout": "A String", # Time before the check is considered failed.
          "path": "A String", # The request path.
          "successThreshold": 42, # Number of consecutive successful checks required before receiving traffic.
          "failureThreshold": 42, # Number of consecutive failed checks required before removing traffic.
        },
        "runtimeMainExecutablePath": "A String", # The path or name of the app's main executable.
        "apiConfig": { # Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/) configuration for API handlers. # Serving configuration for Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/).Only returned in GET requests if view=FULL is set.
          "url": "A String", # URL to serve the endpoint at.
          "securityLevel": "A String", # Security (HTTPS) enforcement for this URL.
          "authFailAction": "A String", # Action to take when users access resources that require authentication. Defaults to redirect.
          "login": "A String", # Level of login required to access this resource. Defaults to optional.
          "script": "A String", # Path to the script from the application root directory.
        },
        "threadsafe": True or False, # Whether multiple requests can be dispatched to this version at once.
        "healthCheck": { # Health checking configuration for VM instances. Unhealthy instances are killed and replaced with new instances. Only applicable for instances in App Engine flexible environment. # Configures health checking for instances. Unhealthy instances are stopped and replaced with new instances. Only applicable in the App Engine flexible environment.Only returned in GET requests if view=FULL is set.
          "restartThreshold": 42, # Number of consecutive failed health checks required before an instance is restarted.
          "checkInterval": "A String", # Interval between health checks.
          "unhealthyThreshold": 42, # Number of consecutive failed health checks required before removing traffic.
          "healthyThreshold": 42, # Number of consecutive successful health checks required before receiving traffic.
          "host": "A String", # Host header to send when performing an HTTP health check. Example: "myapp.appspot.com"
          "timeout": "A String", # Time before the health check is considered failed.
          "disableHealthCheck": True or False, # Whether to explicitly disable health checks for this instance.
        },
        "id": "A String", # Relative name of the version within the service. Example: v1. Version names can contain only lowercase letters, numbers, or hyphens. Reserved names: "default", "latest", and any name with the prefix "ah-".
        "libraries": [ # Configuration for third-party Python runtime libraries that are required by the application.Only returned in GET requests if view=FULL is set.
          { # Third-party Python runtime library that is required by the application.
            "version": "A String", # Version of the library to select, or "latest".
            "name": "A String", # Name of the library. Example: "django".
          },
        ],
        "entrypoint": { # The entrypoint for the application. # The entrypoint for the application.
          "shell": "A String", # The format should be a shell command that can be fed to bash -c.
        },
        "env": "A String", # App Engine execution environment for this version.Defaults to standard.
        "diskUsageBytes": "A String", # Total size in bytes of all the files that are included in this version and currently hosted on the App Engine disk.@OutputOnly
        "automaticScaling": { # Automatic scaling is based on request rate, response latencies, and other application metrics. # Automatic scaling is based on request rate, response latencies, and other application metrics.
          "minPendingLatency": "A String", # Minimum amount of time a request should wait in the pending queue before starting a new instance to handle it.
          "cpuUtilization": { # Target scaling by CPU usage. # Target scaling by CPU usage.
            "targetUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling. Must be between 0 and 1.
            "aggregationWindowLength": "A String", # Period of time over which CPU utilization is calculated.
          },
          "networkUtilization": { # Target scaling by network usage. Only applicable in the App Engine flexible environment. # Target scaling by network usage.
            "targetReceivedPacketsPerSecond": 42, # Target packets received per second.
            "targetSentPacketsPerSecond": 42, # Target packets sent per second.
            "targetReceivedBytesPerSecond": 42, # Target bytes received per second.
            "targetSentBytesPerSecond": 42, # Target bytes sent per second.
          },
          "diskUtilization": { # Target scaling by disk usage. Only applicable in the App Engine flexible environment. # Target scaling by disk usage.
            "targetReadOpsPerSecond": 42, # Target ops read per seconds.
            "targetWriteBytesPerSecond": 42, # Target bytes written per second.
            "targetReadBytesPerSecond": 42, # Target bytes read per second.
            "targetWriteOpsPerSecond": 42, # Target ops written per second.
          },
          "maxPendingLatency": "A String", # Maximum amount of time that a request should wait in the pending queue before starting a new instance to handle it.
          "maxIdleInstances": 42, # Maximum number of idle instances that should be maintained for this version.
          "minIdleInstances": 42, # Minimum number of idle instances that should be maintained for this version. Only applicable for the default version of a service.
          "requestUtilization": { # Target scaling by request utilization. Only applicable in the App Engine flexible environment. # Target scaling by request utilization.
            "targetConcurrentRequests": 42, # Target number of concurrent requests.
            "targetRequestCountPerSecond": 42, # Target requests per second.
          },
          "coolDownPeriod": "A String", # The time period that the Autoscaler (https://cloud.google.com/compute/docs/autoscaler/) should wait before it starts collecting information from a new instance. This prevents the autoscaler from collecting information when the instance is initializing, during which the collected usage would not be reliable. Only applicable in the App Engine flexible environment.
          "maxTotalInstances": 42, # Maximum number of instances that should be started to handle requests for this version.
          "maxConcurrentRequests": 42, # Number of concurrent requests an automatic scaling instance can accept before the scheduler spawns a new instance.Defaults to a runtime-specific value.
          "minTotalInstances": 42, # Minimum number of running instances that should be maintained for this version.
          "standardSchedulerSettings": { # Scheduler settings for standard environment. # Scheduler settings for standard environment.
            "minInstances": 42, # Minimum number of instances to run for this version. Set to zero to disable min_instances configuration.
            "targetCpuUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling.
            "targetThroughputUtilization": 3.14, # Target throughput utilization ratio to maintain when scaling
            "maxInstances": 42, # Maximum number of instances to run for this version. Set to zero to disable max_instances configuration.
          },
        },
        "envVariables": { # Environment variables available to the application.Only returned in GET requests if view=FULL is set.
          "a_key": "A String",
        },
        "resources": { # Machine resources for a version. # Machine resources for this version. Only applicable in the App Engine flexible environment.
          "memoryGb": 3.14, # Memory (GB) needed.
          "diskGb": 3.14, # Disk size (GB) needed.
          "cpu": 3.14, # Number of CPU cores needed.
          "volumes": [ # User specified volumes.
            { # Volumes mounted within the app container. Only applicable in the App Engine flexible environment.
              "volumeType": "A String", # Underlying volume type, e.g. 'tmpfs'.
              "name": "A String", # Unique name for the volume.
              "sizeGb": 3.14, # Volume size in gigabytes.
            },
          ],
        },
        "manualScaling": { # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time. # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time.
          "instances": 42, # Number of instances to assign to the service at the start. This number can later be altered by using the Modules API (https://cloud.google.com/appengine/docs/python/modules/functions) set_num_instances() function.
        },
        "vpcAccessConnector": { # VPC access connector specification. # Enables VPC connectivity for standard apps.
          "name": "A String", # Full Serverless VPC Access Connector name e.g. /projects/my-project/locations/us-central1/connectors/c1.
        },
        "inboundServices": [ # Before an application can receive email or XMPP messages, the application must be configured to enable the service.
          "A String",
        ],
        "runtimeChannel": "A String", # The channel of the runtime to use. Only available for some runtimes. Defaults to the default channel.
        "betaSettings": { # Metadata settings that are supplied to this version to enable beta runtime features.
          "a_key": "A String",
        },
        "createdBy": "A String", # Email address of the user who created this version.@OutputOnly
        "deployment": { # Code and application artifacts used to deploy a version to App Engine. # Code and application artifacts that make up this version.Only returned in GET requests if view=FULL is set.
          "files": { # Manifest of the files stored in Google Cloud Storage that are included as part of this version. All files must be readable using the credentials supplied with this call.
            "a_key": { # Single source file that is part of the version to be deployed. Each source file that is deployed must be specified separately.
              "mimeType": "A String", # The MIME type of the file.Defaults to the value from Google Cloud Storage.
              "sourceUrl": "A String", # URL source to use to fetch this file. Must be a URL to a resource in Google Cloud Storage in the form 'http(s)://storage.googleapis.com//

`delete(appsId, servicesId, versionsId, x__xgafv=None)`

    Deletes an existing Version resource.

    Args:
      appsId: string, Part of `name`. Name of the resource requested. Example: apps/myapp/services/default/versions/v1. (required)
      servicesId: string, Part of `name`. See documentation of `appsId`. (required)
      versionsId: string, Part of `name`. See documentation of `appsId`. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a network API call.
        "metadata": { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
        "error": { # The Status type defines a logical error model that is suitable for 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). # The error result of the operation in case of failure or cancellation.
          "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.
          "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.
            },
          ],
        },
        "done": True or False, # If the value is false, it means the operation is still in progress. If true, the operation is completed, and either error or response is available.
        "response": { # The normal response of the operation in case of success. If the original method returns no data on success, such as Delete, the response is google.protobuf.Empty. If the original method is standard Get/Create/Update, the response should be the resource. For other methods, the response should have the type XxxResponse, where Xxx is the original method name. For example, if the original method name is TakeSnapshot(), the inferred response type is TakeSnapshotResponse.
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
        "name": "A String", # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the name should be a resource name ending with operations/{unique_id}.
      }

`get(appsId, servicesId, versionsId, x__xgafv=None, view=None)`

    Gets the specified Version resource. By default, only a BASIC_VIEW will be returned. Specify the FULL_VIEW parameter to get the full resource.

    Args:
      appsId: string, Part of `name`. Name of the resource requested. Example: apps/myapp/services/default/versions/v1. (required)
      servicesId: string, Part of `name`. See documentation of `appsId`. (required)
      versionsId: string, Part of `name`. See documentation of `appsId`. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format
      view: string, Controls the set of fields returned in the Get response.

    Returns:
      An object of the form:

        { # A Version resource is a specific set of source code and configuration files that are deployed into a service.
          "endpointsApiService": { # Cloud Endpoints (https://cloud.google.com/endpoints) configuration. The Endpoints API Service provides tooling for serving Open API and gRPC endpoints via an NGINX proxy. Only valid for App Engine Flexible environment deployments.The fields here refer to the name and configuration ID of a "service" resource in the Service Management API (https://cloud.google.com/service-management/overview). # Cloud Endpoints configuration.If endpoints_api_service is set, the Cloud Endpoints Extensible Service Proxy will be provided to serve the API implemented by the app.
            "configId": "A String", # Endpoints service configuration ID as specified by the Service Management API. For example "2016-09-19r1".By default, the rollout strategy for Endpoints is RolloutStrategy.FIXED. This means that Endpoints starts up with a particular configuration ID. When a new configuration is rolled out, Endpoints must be given the new configuration ID. The config_id field is used to give the configuration ID and is required in this case.Endpoints also has a rollout strategy called RolloutStrategy.MANAGED. When using this, Endpoints fetches the latest configuration and does not need the configuration ID. In this case, config_id must be omitted.
            "rolloutStrategy": "A String", # Endpoints rollout strategy. If FIXED, config_id must be specified. If MANAGED, config_id must be omitted.
            "disableTraceSampling": True or False, # Enable or disable trace sampling. By default, this is set to false for enabled.
            "name": "A String", # Endpoints service name which is the name of the "service" resource in the Service Management API. For example "myapi.endpoints.myproject.cloud.goog"
          },
          "defaultExpiration": "A String", # Duration that static files should be cached by web proxies and browsers. Only applicable if the corresponding StaticFilesHandler (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StaticFilesHandler) does not specify its own expiration time.Only returned in GET requests if view=FULL is set.
          "basicScaling": { # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity. # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity.
            "idleTimeout": "A String", # Duration of time after the last request that an instance must wait before the instance is shut down.
            "maxInstances": 42, # Maximum number of instances to create for this version.
          },
          "vm": True or False, # Whether to deploy this version in a container on a virtual machine.
          "zones": [ # The Google Compute Engine zones that are supported by this version in the App Engine flexible environment. Deprecated.
            "A String",
          ],
          "instanceClass": "A String", # Instance class that is used to run this version. Valid values are:
              # AutomaticScaling: F1, F2, F4, F4_1G
              # ManualScaling or BasicScaling: B1, B2, B4, B8, B4_1GDefaults to F1 for AutomaticScaling and B1 for ManualScaling or BasicScaling.
          "errorHandlers": [ # Custom static error pages. Limited to 10KB per page.Only returned in GET requests if view=FULL is set.
            { # Custom static error page to be served when an error occurs.
              "errorCode": "A String", # Error condition this handler applies to.
              "mimeType": "A String", # MIME type of file. Defaults to text/html.
              "staticFile": "A String", # Static file content to be served for this error.
            },
          ],
          "versionUrl": "A String", # Serving URL for this version. Example: "https://myversion-dot-myservice-dot-myapp.appspot.com"@OutputOnly
          "readinessCheck": { # Readiness checking configuration for VM instances. Unhealthy instances are removed from traffic rotation. # Configures readiness health checking for instances. Unhealthy instances are not put into the backend traffic rotation.Only returned in GET requests if view=FULL is set.
            "checkInterval": "A String", # Interval between health checks.
            "host": "A String", # Host header to send when performing a HTTP Readiness check. Example: "myapp.appspot.com"
            "appStartTimeout": "A String", # A maximum time limit on application initialization, measured from moment the application successfully replies to a healthcheck until it is ready to serve traffic.
            "timeout": "A String", # Time before the check is considered failed.
            "path": "A String", # The request path.
            "successThreshold": 42, # Number of consecutive successful checks required before receiving traffic.
            "failureThreshold": 42, # Number of consecutive failed checks required before removing traffic.
          },
          "runtimeMainExecutablePath": "A String", # The path or name of the app's main executable.
          "apiConfig": { # Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/) configuration for API handlers. # Serving configuration for Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/).Only returned in GET requests if view=FULL is set.
            "url": "A String", # URL to serve the endpoint at.
            "securityLevel": "A String", # Security (HTTPS) enforcement for this URL.
            "authFailAction": "A String", # Action to take when users access resources that require authentication. Defaults to redirect.
            "login": "A String", # Level of login required to access this resource. Defaults to optional.
            "script": "A String", # Path to the script from the application root directory.
          },
          "threadsafe": True or False, # Whether multiple requests can be dispatched to this version at once.
          "healthCheck": { # Health checking configuration for VM instances. Unhealthy instances are killed and replaced with new instances. Only applicable for instances in App Engine flexible environment. # Configures health checking for instances. Unhealthy instances are stopped and replaced with new instances. Only applicable in the App Engine flexible environment.Only returned in GET requests if view=FULL is set.
            "restartThreshold": 42, # Number of consecutive failed health checks required before an instance is restarted.
            "checkInterval": "A String", # Interval between health checks.
            "unhealthyThreshold": 42, # Number of consecutive failed health checks required before removing traffic.
            "healthyThreshold": 42, # Number of consecutive successful health checks required before receiving traffic.
            "host": "A String", # Host header to send when performing an HTTP health check. Example: "myapp.appspot.com"
            "timeout": "A String", # Time before the health check is considered failed.
            "disableHealthCheck": True or False, # Whether to explicitly disable health checks for this instance.
          },
          "id": "A String", # Relative name of the version within the service. Example: v1. Version names can contain only lowercase letters, numbers, or hyphens. Reserved names: "default", "latest", and any name with the prefix "ah-".
          "libraries": [ # Configuration for third-party Python runtime libraries that are required by the application.Only returned in GET requests if view=FULL is set.
            { # Third-party Python runtime library that is required by the application.
              "version": "A String", # Version of the library to select, or "latest".
              "name": "A String", # Name of the library. Example: "django".
            },
          ],
          "entrypoint": { # The entrypoint for the application. # The entrypoint for the application.
            "shell": "A String", # The format should be a shell command that can be fed to bash -c.
          },
          "env": "A String", # App Engine execution environment for this version.Defaults to standard.
          "diskUsageBytes": "A String", # Total size in bytes of all the files that are included in this version and currently hosted on the App Engine disk.@OutputOnly
          "automaticScaling": { # Automatic scaling is based on request rate, response latencies, and other application metrics. # Automatic scaling is based on request rate, response latencies, and other application metrics.
            "minPendingLatency": "A String", # Minimum amount of time a request should wait in the pending queue before starting a new instance to handle it.
            "cpuUtilization": { # Target scaling by CPU usage. # Target scaling by CPU usage.
              "targetUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling. Must be between 0 and 1.
              "aggregationWindowLength": "A String", # Period of time over which CPU utilization is calculated.
            },
            "networkUtilization": { # Target scaling by network usage. Only applicable in the App Engine flexible environment. # Target scaling by network usage.
              "targetReceivedPacketsPerSecond": 42, # Target packets received per second.
              "targetSentPacketsPerSecond": 42, # Target packets sent per second.
              "targetReceivedBytesPerSecond": 42, # Target bytes received per second.
              "targetSentBytesPerSecond": 42, # Target bytes sent per second.
            },
            "diskUtilization": { # Target scaling by disk usage. Only applicable in the App Engine flexible environment. # Target scaling by disk usage.
              "targetReadOpsPerSecond": 42, # Target ops read per seconds.
              "targetWriteBytesPerSecond": 42, # Target bytes written per second.
              "targetReadBytesPerSecond": 42, # Target bytes read per second.
              "targetWriteOpsPerSecond": 42, # Target ops written per second.
            },
            "maxPendingLatency": "A String", # Maximum amount of time that a request should wait in the pending queue before starting a new instance to handle it.
            "maxIdleInstances": 42, # Maximum number of idle instances that should be maintained for this version.
            "minIdleInstances": 42, # Minimum number of idle instances that should be maintained for this version. Only applicable for the default version of a service.
            "requestUtilization": { # Target scaling by request utilization. Only applicable in the App Engine flexible environment. # Target scaling by request utilization.
              "targetConcurrentRequests": 42, # Target number of concurrent requests.
              "targetRequestCountPerSecond": 42, # Target requests per second.
            },
            "coolDownPeriod": "A String", # The time period that the Autoscaler (https://cloud.google.com/compute/docs/autoscaler/) should wait before it starts collecting information from a new instance. This prevents the autoscaler from collecting information when the instance is initializing, during which the collected usage would not be reliable. Only applicable in the App Engine flexible environment.
            "maxTotalInstances": 42, # Maximum number of instances that should be started to handle requests for this version.
            "maxConcurrentRequests": 42, # Number of concurrent requests an automatic scaling instance can accept before the scheduler spawns a new instance.Defaults to a runtime-specific value.
            "minTotalInstances": 42, # Minimum number of running instances that should be maintained for this version.
            "standardSchedulerSettings": { # Scheduler settings for standard environment. # Scheduler settings for standard environment.
              "minInstances": 42, # Minimum number of instances to run for this version. Set to zero to disable min_instances configuration.
              "targetCpuUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling.
              "targetThroughputUtilization": 3.14, # Target throughput utilization ratio to maintain when scaling
              "maxInstances": 42, # Maximum number of instances to run for this version. Set to zero to disable max_instances configuration.
            },
          },
          "envVariables": { # Environment variables available to the application.Only returned in GET requests if view=FULL is set.
            "a_key": "A String",
          },
          "resources": { # Machine resources for a version. # Machine resources for this version. Only applicable in the App Engine flexible environment.
            "memoryGb": 3.14, # Memory (GB) needed.
            "diskGb": 3.14, # Disk size (GB) needed.
            "cpu": 3.14, # Number of CPU cores needed.
            "volumes": [ # User specified volumes.
              { # Volumes mounted within the app container. Only applicable in the App Engine flexible environment.
                "volumeType": "A String", # Underlying volume type, e.g. 'tmpfs'.
                "name": "A String", # Unique name for the volume.
                "sizeGb": 3.14, # Volume size in gigabytes.
              },
            ],
          },
          "manualScaling": { # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time. # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time.
            "instances": 42, # Number of instances to assign to the service at the start. This number can later be altered by using the Modules API (https://cloud.google.com/appengine/docs/python/modules/functions) set_num_instances() function.
          },
          "vpcAccessConnector": { # VPC access connector specification. # Enables VPC connectivity for standard apps.
            "name": "A String", # Full Serverless VPC Access Connector name e.g. /projects/my-project/locations/us-central1/connectors/c1.
          },
          "inboundServices": [ # Before an application can receive email or XMPP messages, the application must be configured to enable the service.
            "A String",
          ],
          "runtimeChannel": "A String", # The channel of the runtime to use. Only available for some runtimes. Defaults to the default channel.
          "betaSettings": { # Metadata settings that are supplied to this version to enable beta runtime features.
            "a_key": "A String",
          },
          "createdBy": "A String", # Email address of the user who created this version.@OutputOnly
          "deployment": { # Code and application artifacts used to deploy a version to App Engine. # Code and application artifacts that make up this version.Only returned in GET requests if view=FULL is set.
            "files": { # Manifest of the files stored in Google Cloud Storage that are included as part of this version. All files must be readable using the credentials supplied with this call.
              "a_key": { # Single source file that is part of the version to be deployed. Each source file that is deployed must be specified separately.
                "mimeType": "A String", # The MIME type of the file.Defaults to the value from Google Cloud Storage.
                "sourceUrl": "A String", # URL source to use to fetch this file. Must be a URL to a resource in Google Cloud Storage in the form 'http(s)://storage.googleapis.com//

`list(appsId, servicesId, pageSize=None, pageToken=None, x__xgafv=None, view=None)`

    Lists the versions of a service.

    Args:
      appsId: string, Part of `parent`. Name of the parent Service resource. Example: apps/myapp/services/default. (required)
      servicesId: string, Part of `parent`. See documentation of `appsId`. (required)
      pageSize: integer, Maximum results to return per page.
      pageToken: string, Continuation token for fetching the next page of results.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format
      view: string, Controls the set of fields returned in the List response.

    Returns:
      An object of the form:

        { # Response message for Versions.ListVersions.
        "nextPageToken": "A String", # Continuation token for fetching the next page of results.
        "versions": [ # The versions belonging to the requested service.
          { # A Version resource is a specific set of source code and configuration files that are deployed into a service.
              "endpointsApiService": { # Cloud Endpoints (https://cloud.google.com/endpoints) configuration. The Endpoints API Service provides tooling for serving Open API and gRPC endpoints via an NGINX proxy. Only valid for App Engine Flexible environment deployments.The fields here refer to the name and configuration ID of a "service" resource in the Service Management API (https://cloud.google.com/service-management/overview). # Cloud Endpoints configuration.If endpoints_api_service is set, the Cloud Endpoints Extensible Service Proxy will be provided to serve the API implemented by the app.
                "configId": "A String", # Endpoints service configuration ID as specified by the Service Management API. For example "2016-09-19r1".By default, the rollout strategy for Endpoints is RolloutStrategy.FIXED. This means that Endpoints starts up with a particular configuration ID. When a new configuration is rolled out, Endpoints must be given the new configuration ID. The config_id field is used to give the configuration ID and is required in this case.Endpoints also has a rollout strategy called RolloutStrategy.MANAGED. When using this, Endpoints fetches the latest configuration and does not need the configuration ID. In this case, config_id must be omitted.
                "rolloutStrategy": "A String", # Endpoints rollout strategy. If FIXED, config_id must be specified. If MANAGED, config_id must be omitted.
                "disableTraceSampling": True or False, # Enable or disable trace sampling. By default, this is set to false for enabled.
                "name": "A String", # Endpoints service name which is the name of the "service" resource in the Service Management API. For example "myapi.endpoints.myproject.cloud.goog"
              },
              "defaultExpiration": "A String", # Duration that static files should be cached by web proxies and browsers. Only applicable if the corresponding StaticFilesHandler (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StaticFilesHandler) does not specify its own expiration time.Only returned in GET requests if view=FULL is set.
              "basicScaling": { # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity. # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity.
                "idleTimeout": "A String", # Duration of time after the last request that an instance must wait before the instance is shut down.
                "maxInstances": 42, # Maximum number of instances to create for this version.
              },
              "vm": True or False, # Whether to deploy this version in a container on a virtual machine.
              "zones": [ # The Google Compute Engine zones that are supported by this version in the App Engine flexible environment. Deprecated.
                "A String",
              ],
              "instanceClass": "A String", # Instance class that is used to run this version. Valid values are:
                  # AutomaticScaling: F1, F2, F4, F4_1G
                  # ManualScaling or BasicScaling: B1, B2, B4, B8, B4_1GDefaults to F1 for AutomaticScaling and B1 for ManualScaling or BasicScaling.
              "errorHandlers": [ # Custom static error pages. Limited to 10KB per page.Only returned in GET requests if view=FULL is set.
                { # Custom static error page to be served when an error occurs.
                  "errorCode": "A String", # Error condition this handler applies to.
                  "mimeType": "A String", # MIME type of file. Defaults to text/html.
                  "staticFile": "A String", # Static file content to be served for this error.
                },
              ],
              "versionUrl": "A String", # Serving URL for this version. Example: "https://myversion-dot-myservice-dot-myapp.appspot.com"@OutputOnly
              "readinessCheck": { # Readiness checking configuration for VM instances. Unhealthy instances are removed from traffic rotation. # Configures readiness health checking for instances. Unhealthy instances are not put into the backend traffic rotation.Only returned in GET requests if view=FULL is set.
                "checkInterval": "A String", # Interval between health checks.
                "host": "A String", # Host header to send when performing a HTTP Readiness check. Example: "myapp.appspot.com"
                "appStartTimeout": "A String", # A maximum time limit on application initialization, measured from moment the application successfully replies to a healthcheck until it is ready to serve traffic.
                "timeout": "A String", # Time before the check is considered failed.
                "path": "A String", # The request path.
                "successThreshold": 42, # Number of consecutive successful checks required before receiving traffic.
                "failureThreshold": 42, # Number of consecutive failed checks required before removing traffic.
              },
              "runtimeMainExecutablePath": "A String", # The path or name of the app's main executable.
              "apiConfig": { # Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/) configuration for API handlers. # Serving configuration for Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/).Only returned in GET requests if view=FULL is set.
                "url": "A String", # URL to serve the endpoint at.
                "securityLevel": "A String", # Security (HTTPS) enforcement for this URL.
                "authFailAction": "A String", # Action to take when users access resources that require authentication. Defaults to redirect.
                "login": "A String", # Level of login required to access this resource. Defaults to optional.
                "script": "A String", # Path to the script from the application root directory.
              },
              "threadsafe": True or False, # Whether multiple requests can be dispatched to this version at once.
              "healthCheck": { # Health checking configuration for VM instances. Unhealthy instances are killed and replaced with new instances. Only applicable for instances in App Engine flexible environment. # Configures health checking for instances. Unhealthy instances are stopped and replaced with new instances. Only applicable in the App Engine flexible environment.Only returned in GET requests if view=FULL is set.
                "restartThreshold": 42, # Number of consecutive failed health checks required before an instance is restarted.
                "checkInterval": "A String", # Interval between health checks.
                "unhealthyThreshold": 42, # Number of consecutive failed health checks required before removing traffic.
                "healthyThreshold": 42, # Number of consecutive successful health checks required before receiving traffic.
                "host": "A String", # Host header to send when performing an HTTP health check. Example: "myapp.appspot.com"
                "timeout": "A String", # Time before the health check is considered failed.
                "disableHealthCheck": True or False, # Whether to explicitly disable health checks for this instance.
              },
              "id": "A String", # Relative name of the version within the service. Example: v1. Version names can contain only lowercase letters, numbers, or hyphens. Reserved names: "default", "latest", and any name with the prefix "ah-".
              "libraries": [ # Configuration for third-party Python runtime libraries that are required by the application.Only returned in GET requests if view=FULL is set.
                { # Third-party Python runtime library that is required by the application.
                  "version": "A String", # Version of the library to select, or "latest".
                  "name": "A String", # Name of the library. Example: "django".
                },
              ],
              "entrypoint": { # The entrypoint for the application. # The entrypoint for the application.
                "shell": "A String", # The format should be a shell command that can be fed to bash -c.
              },
              "env": "A String", # App Engine execution environment for this version.Defaults to standard.
              "diskUsageBytes": "A String", # Total size in bytes of all the files that are included in this version and currently hosted on the App Engine disk.@OutputOnly
              "automaticScaling": { # Automatic scaling is based on request rate, response latencies, and other application metrics. # Automatic scaling is based on request rate, response latencies, and other application metrics.
                "minPendingLatency": "A String", # Minimum amount of time a request should wait in the pending queue before starting a new instance to handle it.
                "cpuUtilization": { # Target scaling by CPU usage. # Target scaling by CPU usage.
                  "targetUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling. Must be between 0 and 1.
                  "aggregationWindowLength": "A String", # Period of time over which CPU utilization is calculated.
                },
                "networkUtilization": { # Target scaling by network usage. Only applicable in the App Engine flexible environment. # Target scaling by network usage.
                  "targetReceivedPacketsPerSecond": 42, # Target packets received per second.
                  "targetSentPacketsPerSecond": 42, # Target packets sent per second.
                  "targetReceivedBytesPerSecond": 42, # Target bytes received per second.
                  "targetSentBytesPerSecond": 42, # Target bytes sent per second.
                },
                "diskUtilization": { # Target scaling by disk usage. Only applicable in the App Engine flexible environment. # Target scaling by disk usage.
                  "targetReadOpsPerSecond": 42, # Target ops read per seconds.
                  "targetWriteBytesPerSecond": 42, # Target bytes written per second.
                  "targetReadBytesPerSecond": 42, # Target bytes read per second.
                  "targetWriteOpsPerSecond": 42, # Target ops written per second.
                },
                "maxPendingLatency": "A String", # Maximum amount of time that a request should wait in the pending queue before starting a new instance to handle it.
                "maxIdleInstances": 42, # Maximum number of idle instances that should be maintained for this version.
                "minIdleInstances": 42, # Minimum number of idle instances that should be maintained for this version. Only applicable for the default version of a service.
                "requestUtilization": { # Target scaling by request utilization. Only applicable in the App Engine flexible environment. # Target scaling by request utilization.
                  "targetConcurrentRequests": 42, # Target number of concurrent requests.
                  "targetRequestCountPerSecond": 42, # Target requests per second.
                },
                "coolDownPeriod": "A String", # The time period that the Autoscaler (https://cloud.google.com/compute/docs/autoscaler/) should wait before it starts collecting information from a new instance. This prevents the autoscaler from collecting information when the instance is initializing, during which the collected usage would not be reliable. Only applicable in the App Engine flexible environment.
                "maxTotalInstances": 42, # Maximum number of instances that should be started to handle requests for this version.
                "maxConcurrentRequests": 42, # Number of concurrent requests an automatic scaling instance can accept before the scheduler spawns a new instance.Defaults to a runtime-specific value.
                "minTotalInstances": 42, # Minimum number of running instances that should be maintained for this version.
                "standardSchedulerSettings": { # Scheduler settings for standard environment. # Scheduler settings for standard environment.
                  "minInstances": 42, # Minimum number of instances to run for this version. Set to zero to disable min_instances configuration.
                  "targetCpuUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling.
                  "targetThroughputUtilization": 3.14, # Target throughput utilization ratio to maintain when scaling
                  "maxInstances": 42, # Maximum number of instances to run for this version. Set to zero to disable max_instances configuration.
                },
              },
              "envVariables": { # Environment variables available to the application.Only returned in GET requests if view=FULL is set.
                "a_key": "A String",
              },
              "resources": { # Machine resources for a version. # Machine resources for this version. Only applicable in the App Engine flexible environment.
                "memoryGb": 3.14, # Memory (GB) needed.
                "diskGb": 3.14, # Disk size (GB) needed.
                "cpu": 3.14, # Number of CPU cores needed.
                "volumes": [ # User specified volumes.
                  { # Volumes mounted within the app container. Only applicable in the App Engine flexible environment.
                    "volumeType": "A String", # Underlying volume type, e.g. 'tmpfs'.
                    "name": "A String", # Unique name for the volume.
                    "sizeGb": 3.14, # Volume size in gigabytes.
                  },
                ],
              },
              "manualScaling": { # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time. # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time.
                "instances": 42, # Number of instances to assign to the service at the start. This number can later be altered by using the Modules API (https://cloud.google.com/appengine/docs/python/modules/functions) set_num_instances() function.
              },
              "vpcAccessConnector": { # VPC access connector specification. # Enables VPC connectivity for standard apps.
                "name": "A String", # Full Serverless VPC Access Connector name e.g. /projects/my-project/locations/us-central1/connectors/c1.
              },
              "inboundServices": [ # Before an application can receive email or XMPP messages, the application must be configured to enable the service.
                "A String",
              ],
              "runtimeChannel": "A String", # The channel of the runtime to use. Only available for some runtimes. Defaults to the default channel.
              "betaSettings": { # Metadata settings that are supplied to this version to enable beta runtime features.
                "a_key": "A String",
              },
              "createdBy": "A String", # Email address of the user who created this version.@OutputOnly
              "deployment": { # Code and application artifacts used to deploy a version to App Engine. # Code and application artifacts that make up this version.Only returned in GET requests if view=FULL is set.
                "files": { # Manifest of the files stored in Google Cloud Storage that are included as part of this version. All files must be readable using the credentials supplied with this call.
                  "a_key": { # Single source file that is part of the version to be deployed. Each source file that is deployed must be specified separately.
                    "mimeType": "A String", # The MIME type of the file.Defaults to the value from Google Cloud Storage.
                    "sourceUrl": "A String", # URL source to use to fetch this file. Must be a URL to a resource in Google Cloud Storage in the form 'http(s)://storage.googleapis.com//

`list_next(previous_request, previous_response)`

    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(appsId, servicesId, versionsId, body, updateMask=None, x__xgafv=None)`

    Updates the specified Version resource. You can specify the following fields depending on the App Engine environment and type of scaling that the version resource uses:Standard environment
    instance_class (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.instance_class)automatic scaling in the standard environment:
    automatic_scaling.min_idle_instances (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
    automatic_scaling.max_idle_instances (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
    automaticScaling.standard_scheduler_settings.max_instances (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
    automaticScaling.standard_scheduler_settings.min_instances (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
    automaticScaling.standard_scheduler_settings.target_cpu_utilization (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)
    automaticScaling.standard_scheduler_settings.target_throughput_utilization (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StandardSchedulerSettings)basic scaling or manual scaling in the standard environment:
    serving_status (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)Flexible environment
    serving_status (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.serving_status)automatic scaling in the flexible environment:
    automatic_scaling.min_total_instances (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
    automatic_scaling.max_total_instances (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
    automatic_scaling.cool_down_period_sec (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)
    automatic_scaling.cpu_utilization.target_utilization (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#Version.FIELDS.automatic_scaling)

    Args:
      appsId: string, Part of `name`. Name of the resource to update. Example: apps/myapp/services/default/versions/1. (required)
      servicesId: string, Part of `name`. See documentation of `appsId`. (required)
      versionsId: string, Part of `name`. See documentation of `appsId`. (required)
      body: object, The request body. (required)
        The object takes the form of:

    { # A Version resource is a specific set of source code and configuration files that are deployed into a service.
        "endpointsApiService": { # Cloud Endpoints (https://cloud.google.com/endpoints) configuration. The Endpoints API Service provides tooling for serving Open API and gRPC endpoints via an NGINX proxy. Only valid for App Engine Flexible environment deployments.The fields here refer to the name and configuration ID of a "service" resource in the Service Management API (https://cloud.google.com/service-management/overview). # Cloud Endpoints configuration.If endpoints_api_service is set, the Cloud Endpoints Extensible Service Proxy will be provided to serve the API implemented by the app.
          "configId": "A String", # Endpoints service configuration ID as specified by the Service Management API. For example "2016-09-19r1".By default, the rollout strategy for Endpoints is RolloutStrategy.FIXED. This means that Endpoints starts up with a particular configuration ID. When a new configuration is rolled out, Endpoints must be given the new configuration ID. The config_id field is used to give the configuration ID and is required in this case.Endpoints also has a rollout strategy called RolloutStrategy.MANAGED. When using this, Endpoints fetches the latest configuration and does not need the configuration ID. In this case, config_id must be omitted.
          "rolloutStrategy": "A String", # Endpoints rollout strategy. If FIXED, config_id must be specified. If MANAGED, config_id must be omitted.
          "disableTraceSampling": True or False, # Enable or disable trace sampling. By default, this is set to false for enabled.
          "name": "A String", # Endpoints service name which is the name of the "service" resource in the Service Management API. For example "myapi.endpoints.myproject.cloud.goog"
        },
        "defaultExpiration": "A String", # Duration that static files should be cached by web proxies and browsers. Only applicable if the corresponding StaticFilesHandler (https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1/apps.services.versions#StaticFilesHandler) does not specify its own expiration time.Only returned in GET requests if view=FULL is set.
        "basicScaling": { # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity. # A service with basic scaling will create an instance when the application receives a request. The instance will be turned down when the app becomes idle. Basic scaling is ideal for work that is intermittent or driven by user activity.
          "idleTimeout": "A String", # Duration of time after the last request that an instance must wait before the instance is shut down.
          "maxInstances": 42, # Maximum number of instances to create for this version.
        },
        "vm": True or False, # Whether to deploy this version in a container on a virtual machine.
        "zones": [ # The Google Compute Engine zones that are supported by this version in the App Engine flexible environment. Deprecated.
          "A String",
        ],
        "instanceClass": "A String", # Instance class that is used to run this version. Valid values are:
            # AutomaticScaling: F1, F2, F4, F4_1G
            # ManualScaling or BasicScaling: B1, B2, B4, B8, B4_1GDefaults to F1 for AutomaticScaling and B1 for ManualScaling or BasicScaling.
        "errorHandlers": [ # Custom static error pages. Limited to 10KB per page.Only returned in GET requests if view=FULL is set.
          { # Custom static error page to be served when an error occurs.
            "errorCode": "A String", # Error condition this handler applies to.
            "mimeType": "A String", # MIME type of file. Defaults to text/html.
            "staticFile": "A String", # Static file content to be served for this error.
          },
        ],
        "versionUrl": "A String", # Serving URL for this version. Example: "https://myversion-dot-myservice-dot-myapp.appspot.com"@OutputOnly
        "readinessCheck": { # Readiness checking configuration for VM instances. Unhealthy instances are removed from traffic rotation. # Configures readiness health checking for instances. Unhealthy instances are not put into the backend traffic rotation.Only returned in GET requests if view=FULL is set.
          "checkInterval": "A String", # Interval between health checks.
          "host": "A String", # Host header to send when performing a HTTP Readiness check. Example: "myapp.appspot.com"
          "appStartTimeout": "A String", # A maximum time limit on application initialization, measured from moment the application successfully replies to a healthcheck until it is ready to serve traffic.
          "timeout": "A String", # Time before the check is considered failed.
          "path": "A String", # The request path.
          "successThreshold": 42, # Number of consecutive successful checks required before receiving traffic.
          "failureThreshold": 42, # Number of consecutive failed checks required before removing traffic.
        },
        "runtimeMainExecutablePath": "A String", # The path or name of the app's main executable.
        "apiConfig": { # Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/) configuration for API handlers. # Serving configuration for Google Cloud Endpoints (https://cloud.google.com/appengine/docs/python/endpoints/).Only returned in GET requests if view=FULL is set.
          "url": "A String", # URL to serve the endpoint at.
          "securityLevel": "A String", # Security (HTTPS) enforcement for this URL.
          "authFailAction": "A String", # Action to take when users access resources that require authentication. Defaults to redirect.
          "login": "A String", # Level of login required to access this resource. Defaults to optional.
          "script": "A String", # Path to the script from the application root directory.
        },
        "threadsafe": True or False, # Whether multiple requests can be dispatched to this version at once.
        "healthCheck": { # Health checking configuration for VM instances. Unhealthy instances are killed and replaced with new instances. Only applicable for instances in App Engine flexible environment. # Configures health checking for instances. Unhealthy instances are stopped and replaced with new instances. Only applicable in the App Engine flexible environment.Only returned in GET requests if view=FULL is set.
          "restartThreshold": 42, # Number of consecutive failed health checks required before an instance is restarted.
          "checkInterval": "A String", # Interval between health checks.
          "unhealthyThreshold": 42, # Number of consecutive failed health checks required before removing traffic.
          "healthyThreshold": 42, # Number of consecutive successful health checks required before receiving traffic.
          "host": "A String", # Host header to send when performing an HTTP health check. Example: "myapp.appspot.com"
          "timeout": "A String", # Time before the health check is considered failed.
          "disableHealthCheck": True or False, # Whether to explicitly disable health checks for this instance.
        },
        "id": "A String", # Relative name of the version within the service. Example: v1. Version names can contain only lowercase letters, numbers, or hyphens. Reserved names: "default", "latest", and any name with the prefix "ah-".
        "libraries": [ # Configuration for third-party Python runtime libraries that are required by the application.Only returned in GET requests if view=FULL is set.
          { # Third-party Python runtime library that is required by the application.
            "version": "A String", # Version of the library to select, or "latest".
            "name": "A String", # Name of the library. Example: "django".
          },
        ],
        "entrypoint": { # The entrypoint for the application. # The entrypoint for the application.
          "shell": "A String", # The format should be a shell command that can be fed to bash -c.
        },
        "env": "A String", # App Engine execution environment for this version.Defaults to standard.
        "diskUsageBytes": "A String", # Total size in bytes of all the files that are included in this version and currently hosted on the App Engine disk.@OutputOnly
        "automaticScaling": { # Automatic scaling is based on request rate, response latencies, and other application metrics. # Automatic scaling is based on request rate, response latencies, and other application metrics.
          "minPendingLatency": "A String", # Minimum amount of time a request should wait in the pending queue before starting a new instance to handle it.
          "cpuUtilization": { # Target scaling by CPU usage. # Target scaling by CPU usage.
            "targetUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling. Must be between 0 and 1.
            "aggregationWindowLength": "A String", # Period of time over which CPU utilization is calculated.
          },
          "networkUtilization": { # Target scaling by network usage. Only applicable in the App Engine flexible environment. # Target scaling by network usage.
            "targetReceivedPacketsPerSecond": 42, # Target packets received per second.
            "targetSentPacketsPerSecond": 42, # Target packets sent per second.
            "targetReceivedBytesPerSecond": 42, # Target bytes received per second.
            "targetSentBytesPerSecond": 42, # Target bytes sent per second.
          },
          "diskUtilization": { # Target scaling by disk usage. Only applicable in the App Engine flexible environment. # Target scaling by disk usage.
            "targetReadOpsPerSecond": 42, # Target ops read per seconds.
            "targetWriteBytesPerSecond": 42, # Target bytes written per second.
            "targetReadBytesPerSecond": 42, # Target bytes read per second.
            "targetWriteOpsPerSecond": 42, # Target ops written per second.
          },
          "maxPendingLatency": "A String", # Maximum amount of time that a request should wait in the pending queue before starting a new instance to handle it.
          "maxIdleInstances": 42, # Maximum number of idle instances that should be maintained for this version.
          "minIdleInstances": 42, # Minimum number of idle instances that should be maintained for this version. Only applicable for the default version of a service.
          "requestUtilization": { # Target scaling by request utilization. Only applicable in the App Engine flexible environment. # Target scaling by request utilization.
            "targetConcurrentRequests": 42, # Target number of concurrent requests.
            "targetRequestCountPerSecond": 42, # Target requests per second.
          },
          "coolDownPeriod": "A String", # The time period that the Autoscaler (https://cloud.google.com/compute/docs/autoscaler/) should wait before it starts collecting information from a new instance. This prevents the autoscaler from collecting information when the instance is initializing, during which the collected usage would not be reliable. Only applicable in the App Engine flexible environment.
          "maxTotalInstances": 42, # Maximum number of instances that should be started to handle requests for this version.
          "maxConcurrentRequests": 42, # Number of concurrent requests an automatic scaling instance can accept before the scheduler spawns a new instance.Defaults to a runtime-specific value.
          "minTotalInstances": 42, # Minimum number of running instances that should be maintained for this version.
          "standardSchedulerSettings": { # Scheduler settings for standard environment. # Scheduler settings for standard environment.
            "minInstances": 42, # Minimum number of instances to run for this version. Set to zero to disable min_instances configuration.
            "targetCpuUtilization": 3.14, # Target CPU utilization ratio to maintain when scaling.
            "targetThroughputUtilization": 3.14, # Target throughput utilization ratio to maintain when scaling
            "maxInstances": 42, # Maximum number of instances to run for this version. Set to zero to disable max_instances configuration.
          },
        },
        "envVariables": { # Environment variables available to the application.Only returned in GET requests if view=FULL is set.
          "a_key": "A String",
        },
        "resources": { # Machine resources for a version. # Machine resources for this version. Only applicable in the App Engine flexible environment.
          "memoryGb": 3.14, # Memory (GB) needed.
          "diskGb": 3.14, # Disk size (GB) needed.
          "cpu": 3.14, # Number of CPU cores needed.
          "volumes": [ # User specified volumes.
            { # Volumes mounted within the app container. Only applicable in the App Engine flexible environment.
              "volumeType": "A String", # Underlying volume type, e.g. 'tmpfs'.
              "name": "A String", # Unique name for the volume.
              "sizeGb": 3.14, # Volume size in gigabytes.
            },
          ],
        },
        "manualScaling": { # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time. # A service with manual scaling runs continuously, allowing you to perform complex initialization and rely on the state of its memory over time.
          "instances": 42, # Number of instances to assign to the service at the start. This number can later be altered by using the Modules API (https://cloud.google.com/appengine/docs/python/modules/functions) set_num_instances() function.
        },
        "vpcAccessConnector": { # VPC access connector specification. # Enables VPC connectivity for standard apps.
          "name": "A String", # Full Serverless VPC Access Connector name e.g. /projects/my-project/locations/us-central1/connectors/c1.
        },
        "inboundServices": [ # Before an application can receive email or XMPP messages, the application must be configured to enable the service.
          "A String",
        ],
        "runtimeChannel": "A String", # The channel of the runtime to use. Only available for some runtimes. Defaults to the default channel.
        "betaSettings": { # Metadata settings that are supplied to this version to enable beta runtime features.
          "a_key": "A String",
        },
        "createdBy": "A String", # Email address of the user who created this version.@OutputOnly
        "deployment": { # Code and application artifacts used to deploy a version to App Engine. # Code and application artifacts that make up this version.Only returned in GET requests if view=FULL is set.
          "files": { # Manifest of the files stored in Google Cloud Storage that are included as part of this version. All files must be readable using the credentials supplied with this call.
            "a_key": { # Single source file that is part of the version to be deployed. Each source file that is deployed must be specified separately.
              "mimeType": "A String", # The MIME type of the file.Defaults to the value from Google Cloud Storage.
              "sourceUrl": "A String", # URL source to use to fetch this file. Must be a URL to a resource in Google Cloud Storage in the form 'http(s)://storage.googleapis.com//