docs: def reset(self, keep_state=False):
          """Reset the shared state and drain Django Channels.
  
          :param keep_state: If ``True``, do not reset the shared manager
              state (useful in tests, where the settings overrides need to
              be kept). Defaults to ``False``.
          """
          if not keep_state:
              self.state = state.ManagerState(state.MANAGER_STATE_PREFIX)
              self.state.reset()
          async_to_sync(consumer.run_consumer)(timeout=1)
          async_to_sync(self.sync_counter.reset)()