code: def _cleanup(self):
          '''
          Cleanup all the local data.
          '''
          self._pending_consumers = None
          self._consumer_cb = None
          self._get_cb = None
          self._recover_cb = None
          self._cancel_cb = None
          self._return_listener = None
          super(BasicClass, self)._cleanup(f _cleanup(self):
          '''
          Cleanup all the local data.
          '''
          self._pending_consumers = None
          self._consumer_cb = None
          self._get_cb = None
          self._recover_cb = None
          self._cancel_cb = None
          self._return_listener = None
          super(BasicClass, self)._cleanup()
docs: Cleanup all the local data.