code: def remove_listener(self, registration_id):
          
          return self._stop_listening(registration_id, lambda i: set_remove_listener_codec.encode_request(self.name, i))
docs: Removes the specified item listener. Returns silently if the specified listener was not added before.
  
          :param registration_id: (str), id of the listener to be deleted.
          :return: (bool), ``true`` if the item listener is removed, ``false`` otherwise.