# Cloud Functions API . projects . locations . runtimes

## Instance Methods

Close httplib2 connections.

Returns a list of runtimes that are supported for the requested project.

### Method Details

`close()`

    Close httplib2 connections.

`list(parent, filter=None, x__xgafv=None)`

    Returns a list of runtimes that are supported for the requested project.

    Args:
      parent: string, Required. The project and location from which the runtimes should be listed, specified in the format `projects/*/locations/*` (required)
      filter: string, The filter for Runtimes that match the filter expression, following the syntax outlined in https://google.aip.dev/160.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Response for the `ListRuntimes` method.
      "runtimes": [ # The runtimes that match the request.
        { # Describes a runtime and any special information (e.g., deprecation status) related to it.
          "decommissionDate": { # Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values. * A month and day, with a zero year (for example, an anniversary). * A year on its own, with a zero month and a zero day. * A year and month, with a zero day (for example, a credit card expiration date). Related types: * google.type.TimeOfDay * google.type.DateTime * google.protobuf.Timestamp # Decommission date for the runtime.
            "day": 42, # Day of a month. Must be from 1 to 31 and valid for the year and month, or 0 to specify a year by itself or a year and month where the day isn't significant.
            "month": 42, # Month of a year. Must be from 1 to 12, or 0 to specify a year without a month and day.
            "year": 42, # Year of the date. Must be from 1 to 9999, or 0 to specify a date without a year.
          },
          "deprecationDate": { # Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values. * A month and day, with a zero year (for example, an anniversary). * A year on its own, with a zero month and a zero day. * A year and month, with a zero day (for example, a credit card expiration date). Related types: * google.type.TimeOfDay * google.type.DateTime * google.protobuf.Timestamp # Deprecation date for the runtime.
            "day": 42, # Day of a month. Must be from 1 to 31 and valid for the year and month, or 0 to specify a year by itself or a year and month where the day isn't significant.
            "month": 42, # Month of a year. Must be from 1 to 12, or 0 to specify a year without a month and day.
            "year": 42, # Year of the date. Must be from 1 to 9999, or 0 to specify a date without a year.
          },
          "displayName": "A String", # The user facing name, eg 'Go 1.13', 'Node.js 12', etc.
          "environment": "A String", # The environment for the runtime.
          "name": "A String", # The name of the runtime, e.g., 'go113', 'nodejs12', etc.
          "stage": "A String", # The stage of life this runtime is in, e.g., BETA, GA, etc.
          "warnings": [ # Warning messages, e.g., a deprecation warning.
            "A String",
          ],
        },
      ],
    }