docs: def get_feed_renderer(engines, name):
      """
      From engine name, load the engine path and return the renderer class
      
      Raise 'FeedparserError' if any loading error
      """
      if name not in engines:
          raise FeedparserError("Given feed name '{}' does not exists in 'settings.FEED_RENDER_ENGINES'".format(name))
      
      renderer = safe_import_module(engines[name])
      
      return renderer