Graph graph(OpRegistry::Global());

  GraphDef preprocessed_graphdef(graphdef);
  if (import_options.add_default_attributes) {
    TF_RETURN_IF_ERROR(PreprocessGraphDef(nullptr, &preprocessed_graphdef));
  }

  TF_RETURN_IF_ERROR(ConvertGraphDefToGraph(
      options, std::move(preprocessed_graphdef), &graph));

  NameUniquifier function_name_uniquifier(graph.flib_def());