docs: def save_publication(pub):
      """
      Save `pub` into database and into proper indexes.
  
      Attr:
          pub (obj): Instance of the :class:`.DBPublication`.
  
      Returns:
          obj: :class:`.DBPublication` without data.
  
      Raises:
          InvalidType: When the `pub` is not instance of :class:`.DBPublication`.
          UnindexablePublication: When there is no index (property) which can be
                                  used to index `pub` in database.
      """
      _assert_obj_type(pub)
  
      _get_handler().store_object(pub)
  
      return pub.to_comm(light_request=True)