def METHOD_NAME():
  """Gets the name of the current docker container you are in.
  Returns:
    Container name or None if not in a container.
  """
  result = subprocess.run(  # pylint: disable=subprocess-run-check
      ['systemd-detect-virt', '-c'],
      stdout=subprocess.PIPE).stdout
  if b'docker' not in result:
    return None
  with open('/etc/hostname') as file_handle:
    return file_handle.read().strip()