inline constexpr char kSavedModelTrainOpKey[] = "saved_model_train_op";

// Schema version for SavedModel.
inline constexpr int kSavedModelSchemaVersion = 1;

// SavedModel proto filename prefix.
inline constexpr char kSavedModelFilenamePrefix[] = "saved_model";
// SavedModel proto filename.
inline constexpr char kSavedModelFilenamePb[] = "saved_model.pb";

// SavedModel chunked proto filename.

  return fingerprint_def;
}

}  // namespace

absl::StatusOr<FingerprintDef> CreateFingerprintDef(
    absl::string_view export_dir) {
  std::string prefix = io::JoinPath(export_dir, kSavedModelFilenamePrefix);

#if !defined(PLATFORM_WINDOWS) && !defined(__APPLE__)
  TF_ASSIGN_OR_RETURN(bool only_contains_pb,
                      tools::proto_splitter::OnlyContainsPb(prefix));
  if (only_contains_pb) {

                           SavedObjectGraphFieldTags()}));
  // Read into saved_model.
  TF_RETURN_IF_ERROR(
      Merger::ReadPartial(io::JoinPath(export_dir, kSavedModelFilenamePrefix),
                          pruned_chunk_metadata, &saved_model));
  return saved_model;
}

absl::StatusOr<uint64_t> HashMessage(
    Message* message, const ChunkedMessage& chunked_message,