docs: def MultiDestroyFlowStates(self, session_ids):
      """Deletes all states in multiple flows and dequeues all client messages."""
      deleted_requests = self.data_store.MultiDestroyFlowStates(
          session_ids, request_limit=self.request_limit)
  
      for request in deleted_requests:
        if request.HasField("request"):
          # Client request dequeueing is cached so we can call it directly.
          self.DeQueueClientRequest(request.request)