- release_tracks: [ALPHA, BETA, GA]

  help_text:
    brief: Delete an existing backup.
    description: Delete an existing backup.
    examples: |
      To delete a backup, run:

        $ {command} BACKUP_NAME --instance=INSTANCE_NAME

  request:
    collection: spanner.projects.instances.backups
    modify_request_hooks:
    - googlecloudsdk.api_lib.spanner.backups:CheckBackupExists
  arguments:
    resource:
      help_text: Cloud Spanner backup to delete.
      spec: !REF googlecloudsdk.command_lib.spanner.resources:backup