# Cloud SQL Admin API . tiers

## Instance Methods

Close httplib2 connections.

Lists all available machine types (tiers) for Cloud SQL, for example, `db-custom-1-3840`. For more information, see https://cloud.google.com/sql/pricing.

### Method Details

`close()`

    Close httplib2 connections.

`list(project, x__xgafv=None)`

    Lists all available machine types (tiers) for Cloud SQL, for example, `db-custom-1-3840`. For more information, see https://cloud.google.com/sql/pricing.

    Args:
      project: string, Project ID of the project for which to list tiers. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Tiers list response.
      "items": [ # List of tiers.
        { # A Google Cloud SQL service tier resource.
          "DiskQuota": "A String", # The maximum disk size of this tier in bytes.
          "RAM": "A String", # The maximum RAM usage of this tier in bytes.
          "kind": "A String", # This is always `sql#tier`.
          "region": [ # The applicable regions for this tier.
            "A String",
          ],
          "tier": "A String", # An identifier for the machine type, for example, `db-custom-1-3840`. For related information, see [Pricing](/sql/pricing).
        },
      ],
      "kind": "A String", # This is always `sql#tiersList`.
    }