# Compute Engine API . targetInstances

## Instance Methods

Retrieves an aggregated list of target instances.

Retrieves the next page of results.

Close httplib2 connections.

Deletes the specified TargetInstance resource.

Returns the specified TargetInstance resource. Gets a list of available target instances by making a list() request.

Creates a TargetInstance resource in the specified project and zone using the data included in the request.

Retrieves a list of TargetInstance resources available to the specified project and zone.

Retrieves the next page of results.

Returns permissions that a caller has on the specified resource.

### Method Details

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

    Retrieves an aggregated list of target instances.

    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. 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 `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. 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 on resource 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 Google RE2 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`.
      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.
      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 TargetInstance resources.
        "a_key": { # Name of the scope containing this set of target instances.
          "targetInstances": [ # A list of target instances contained in this scope.
            { # Represents a Target Instance resource. You can use a target instance to handle traffic for one or more forwarding rules, which is ideal for forwarding protocol traffic that is managed by a single source. For example, ESP, AH, TCP, or UDP. For more information, read Target instances.
              "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
              "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
              "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
              "instance": "A String", # A URL to the virtual machine instance that handles traffic for this target instance. When creating a target instance, you can provide the fully-qualified URL or a valid partial URL to the desired virtual machine. For example, the following are all valid URLs: - https://www.googleapis.com/compute/v1/projects/project/zones/zone /instances/instance - projects/project/zones/zone/instances/instance - zones/zone/instances/instance
              "kind": "compute#targetInstance", # [Output Only] The type of the resource. Always compute#targetInstance for target instances.
              "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 with RFC1035. 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.
              "natPolicy": "A String", # Must have a value of NO_NAT. Protocol forwarding delivers packets while preserving the destination IP address of the forwarding rule referencing the target instance.
              "network": "A String", # The URL of the network this target instance uses to forward traffic. If not specified, the traffic will be forwarded to the network that the default network interface belongs to.
              "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
              "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
              "zone": "A String", # [Output Only] URL of the zone where the target instance resides. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
            },
          ],
          "warning": { # Informational warning which replaces the list of addresses 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#targetInstanceAggregatedList", # 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 than maxResults, 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] Server-defined URL for this resource.
      "unreachables": [ # [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, zone, targetInstance, requestId=None, x__xgafv=None)`

    Deletes the specified TargetInstance resource.

    Args:
      project: string, Project ID for this request. (required)
      zone: string, Name of the zone scoping this request. (required)
      targetInstance: string, Name of the TargetInstance 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, read Handling 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 `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "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 in RFC3339 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 should match /[a-zA-Z0-9-_]/ and 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-Z0-9_]+/.
                },
                "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 http://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",
                  },
                  "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.
                },
              },
            ],
            "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.
          },
        ],
      },
      "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 in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [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] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 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 persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "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, zone, targetInstance, x__xgafv=None)`

    Returns the specified TargetInstance resource. Gets a list of available target instances by making a list() request.

    Args:
      project: string, Project ID for this request. (required)
      zone: string, Name of the zone scoping this request. (required)
      targetInstance: string, Name of the TargetInstance 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 Target Instance resource. You can use a target instance to handle traffic for one or more forwarding rules, which is ideal for forwarding protocol traffic that is managed by a single source. For example, ESP, AH, TCP, or UDP. For more information, read Target instances.
      "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
      "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
      "instance": "A String", # A URL to the virtual machine instance that handles traffic for this target instance. When creating a target instance, you can provide the fully-qualified URL or a valid partial URL to the desired virtual machine. For example, the following are all valid URLs: - https://www.googleapis.com/compute/v1/projects/project/zones/zone /instances/instance - projects/project/zones/zone/instances/instance - zones/zone/instances/instance
      "kind": "compute#targetInstance", # [Output Only] The type of the resource. Always compute#targetInstance for target instances.
      "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 with RFC1035. 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.
      "natPolicy": "A String", # Must have a value of NO_NAT. Protocol forwarding delivers packets while preserving the destination IP address of the forwarding rule referencing the target instance.
      "network": "A String", # The URL of the network this target instance uses to forward traffic. If not specified, the traffic will be forwarded to the network that the default network interface belongs to.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "zone": "A String", # [Output Only] URL of the zone where the target instance resides. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
    }

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

    Creates a TargetInstance resource in the specified project and zone using the data included in the request.

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

    { # Represents a Target Instance resource. You can use a target instance to handle traffic for one or more forwarding rules, which is ideal for forwarding protocol traffic that is managed by a single source. For example, ESP, AH, TCP, or UDP. For more information, read Target instances.
      "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
      "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
      "instance": "A String", # A URL to the virtual machine instance that handles traffic for this target instance. When creating a target instance, you can provide the fully-qualified URL or a valid partial URL to the desired virtual machine. For example, the following are all valid URLs: - https://www.googleapis.com/compute/v1/projects/project/zones/zone /instances/instance - projects/project/zones/zone/instances/instance - zones/zone/instances/instance
      "kind": "compute#targetInstance", # [Output Only] The type of the resource. Always compute#targetInstance for target instances.
      "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 with RFC1035. 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.
      "natPolicy": "A String", # Must have a value of NO_NAT. Protocol forwarding delivers packets while preserving the destination IP address of the forwarding rule referencing the target instance.
      "network": "A String", # The URL of the network this target instance uses to forward traffic. If not specified, the traffic will be forwarded to the network that the default network interface belongs to.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "zone": "A String", # [Output Only] URL of the zone where the target instance resides. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
    }

      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, read Handling 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 `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "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 in RFC3339 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 should match /[a-zA-Z0-9-_]/ and 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-Z0-9_]+/.
                },
                "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 http://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",
                  },
                  "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.
                },
              },
            ],
            "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.
          },
        ],
      },
      "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 in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [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] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 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 persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "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, zone, filter=None, maxResults=None, orderBy=None, pageToken=None, returnPartialSuccess=None, x__xgafv=None)`

    Retrieves a list of TargetInstance resources available to the specified project and zone.

    Args:
      project: string, Project ID for this request. (required)
      zone: string, Name of the zone 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. 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 `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. 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 on resource 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 Google RE2 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`.
      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.
      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 TargetInstance resources.
      "id": "A String", # [Output Only] Unique identifier for the resource; defined by the server.
      "items": [ # A list of TargetInstance resources.
        { # Represents a Target Instance resource. You can use a target instance to handle traffic for one or more forwarding rules, which is ideal for forwarding protocol traffic that is managed by a single source. For example, ESP, AH, TCP, or UDP. For more information, read Target instances.
          "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
          "instance": "A String", # A URL to the virtual machine instance that handles traffic for this target instance. When creating a target instance, you can provide the fully-qualified URL or a valid partial URL to the desired virtual machine. For example, the following are all valid URLs: - https://www.googleapis.com/compute/v1/projects/project/zones/zone /instances/instance - projects/project/zones/zone/instances/instance - zones/zone/instances/instance
          "kind": "compute#targetInstance", # [Output Only] The type of the resource. Always compute#targetInstance for target instances.
          "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 with RFC1035. 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.
          "natPolicy": "A String", # Must have a value of NO_NAT. Protocol forwarding delivers packets while preserving the destination IP address of the forwarding rule referencing the target instance.
          "network": "A String", # The URL of the network this target instance uses to forward traffic. If not specified, the traffic will be forwarded to the network that the default network interface belongs to.
          "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
          "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
          "zone": "A String", # [Output Only] URL of the zone where the target instance resides. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
        },
      ],
      "kind": "compute#targetInstanceList", # 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 than maxResults, 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] 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.

`testIamPermissions(project, zone, 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)
      zone: string, The name of the zone 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",
      ],
    }