{
    auto BuildNoopNode = [](absl::string_view name, Graph* graph) {
      NodeDefBuilder builder(name, "NoOp");
      NodeDef def;
      TF_CHECK_OK(builder.Finalize(&def));

      Status status;
      Node* node = graph->AddNode(def, &status);
      TF_CHECK_OK(status);
      return node;
    };

    Node* a = BuildNoopNode("a", graph.get());