- release_tracks: [GA, ALPHA]
  help_text:
    brief: List available runtime versions for Cloud TPU VM nodes.
    description: List runtime versions available for Cloud TPU VM nodes.
    examples: |
      To list all of the runtime versions available in zone `us-central1-b`, run:

        $ {command} --zone=us-central1-b

  request:
    collection: tpu.projects.locations.runtimeVersions
    ALPHA:
      api_version: v2alpha1
    GA:
      api_version: v2

  arguments:
    resource:
      help_text: Zone to list runtime versions for.
      spec: !REF googlecloudsdk.command_lib.compute.tpus.tpu_vm.resources:location

  output:
    format: table(version:label=RUNTIME_VERSION:sort=1)