// calculate the offsets
  void AppendBufferData(absl::Cord& result);

  // Update constant & custom op buffer offsets
  // Return false if fail to update offset
  bool UpdateBufferOffsets(tflite::Model* mutable_model);

  // check if Flatbuffer builder can no longer hold the given amount of the data
  inline bool IsModelBiggerThan2GB(const uint64_t data_size) {