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;
}

struct SubGraphBuilder;
struct SubGraphT;

struct Buffer;
struct BufferBuilder;
struct BufferT;

struct Metadata;
struct MetadataBuilder;
struct MetadataT;

struct TensorMap;
struct TensorMapBuilder;
struct TensorMapT;

struct SignatureDef;
struct SignatureDefBuilder;
struct SignatureDefT;

struct Model;
struct ModelBuilder;
struct ModelT;

enum TensorType : int8_t {