def METHOD_NAME(geo: str) -> Set[str]:
  """Gets valid regions in the geo."""
  stdout, _ = vm_util.IssueRetryableCommand([
      AZURE_PATH, 'account', 'list-locations',
      '--output', 'json',
      '--query', f"[?metadata.geographyGroup == '{geo}']"
  ])
  return set([
      item['name'] for item in json.loads(stdout) if _IsRecommendedRegion(item)
  ])