}

std::string GetHandleShapeAndType(TF_Graph* graph, TF_Output output) {
  Node* node = &output.oper->node;
  tensorflow::core::CppShapeInferenceResult::HandleData handle_data;
  handle_data.set_is_set(true);
  {
    mutex_lock l(graph->mu);
    tensorflow::shape_inference::InferenceContext* ic =
        graph->refiner.GetContext(node);
    CHECK(ic != nullptr);
    CHECK_LT(output.index, ic->num_outputs());