} else if (ret != nullptr) {
      desc->graph->graph.RemoveNode(ret);
      ret = nullptr;
    }
  }

  delete desc;

  return ToOperation(ret);
}

TF_Operation* TF_FinishOperation(TF_OperationDescription* desc,
                                 TF_Status* status) {
  mutex_lock l(desc->graph->mu);
  return TF_FinishOperationLocked(desc, status);
}

// TF_Operation functions