docs: def _display_status(normalized_data, stream):
      """
      print status message from docker-py stream.
      """
      if 'Pull complete' in normalized_data['status'] or 'Download complete' in normalized_data['status']:
          stream.write("\n")
  
      if 'id' in normalized_data:
          stream.write("%s - " % normalized_data['id'])
  
      stream.write("{0}\n".format(normalized_data['status']))