reserved 'file_prefix_tensor_name';

  GraphDef graph_def = 1;

  // Name of the initialization node (TF Operation) used for initializing
  // resources like hash tables upon loading.
  string init_node_name = 2;

  // Path to the directory where checkpoint files are saved. This directoy is
  // not expected to be persistent (usually a temporary directory). When

// Factory function for `ExportedModel`.
[[nodiscard]] tensorflow::quantization::ExportedModel
CreateExportedModelFromGraphDef(
    tensorflow::GraphDef&& graph_def, absl::string_view init_node_name,
    absl::string_view checkpoint_dir,
    std::optional<tensorflow::SaverDef> saver_def,
    const absl::flat_hash_map<std::string, std::string>& function_aliases,