docs: def __safe_errback(self, room_data, err_condition, err_text):
          """
          Safe use of the callback method, to avoid errors propagation
  
          :param room_data: A RoomData object
          :param err_condition: Category of error
          :param err_text: Description of the error
          """
          method = room_data.errback
          if method is not None:
              try:
                  method(room_data.room, room_data.nick, err_condition, err_text)
              except Exception as ex:
                  self.__logger.exception("Error calling back room creator: %s",
                                          ex)