def _GetReleaseTracks(api_version):
  """Returns a string representation of release tracks.

  Args:
    api_version: API version to generate release tracks for.
  """
  if 'alpha' in api_version:
    return '[ALPHA]'
  elif 'beta' in api_version:
    return '[ALPHA, BETA]'
  else:
    return '[ALPHA, BETA, GA]'