new_contents: def fedimg_image_test(config, message):
      """ Fedimg: An image start state(started, completed, or failed)
  
      Adding this rule will let through notifications from the `Fedimg
      <https://github.com/fedora-infra/fedimg>`_ indicating the *image start
      state* (started, completed or failed).
      """
      return message['topic'].endswith('fedimg.image.test')
  
  
  
subject: create rules for fedimg