for (const auto& item : items) {
    auto name_buf = builder_.CreateString(item.first);
    tflite::TensorMapBuilder tensor_map_builder(builder_);
    tensor_map_builder.add_name(name_buf);
    tensor_map_builder.add_tensor_index(
        tensor_index_map_[subgraph_index][item.second]);
    result.push_back(tensor_map_builder.Finish());
  }
  return result;
}