const TF_ImportGraphDefOptions* options, TF_Status* status) {
  const GraphDef* graph_def_ptr =
      reinterpret_cast<const GraphDef*>(graph_def->data);
  auto results = new TF_ImportGraphDefResults();
  mutex_lock l(graph->mu);
  GraphImportGraphDefLocked(graph, *graph_def_ptr, options, results, status);
  if (!status->status.ok()) {
    delete results;
    return nullptr;
  }