uint64_t HashCheckpointIndexFile(absl::string_view model_dir);

// Creates a FingerprintDef proto from a chunked SavedModel and the checkpoint
// meta file (.index) in `export_dir`.
absl::StatusOr<FingerprintDef> CreateFingerprintDefCpb(
    absl::string_view export_dir, std::string cpb_file);

}  // namespace tensorflow::saved_model::fingerprinting

                      tools::proto_splitter::OnlyContainsPb(prefix));
  if (only_contains_pb) {
    return CreateFingerprintDefPb(export_dir, absl::StrCat(prefix, ".pb"));
  }

  return CreateFingerprintDefCpb(export_dir, absl::StrCat(prefix, ".cpb"));
#else
  return CreateFingerprintDefPb(export_dir, absl::StrCat(prefix, ".pb"));
#endif
}

absl::StatusOr<FingerprintDef> ReadSavedModelFingerprint(

      ReadFileToString(Env::Default(), meta_filename, &data);
  if (read_status.ok()) {
    return tensorflow::Fingerprint64(data);
  } else {
    return 0;
  }
}

absl::StatusOr<FingerprintDef> CreateFingerprintDefCpb(
    absl::string_view export_dir, std::string cpb_file) {
  // Version of the code that produced the fingerprint.
  const int kFingerprintProducer = 2;