private static class Sha512Holder {
    static final HashFunction SHA_512 =
        new MessageDigestHashFunction("SHA-512", "Hashing.sha512()");
  }

  /**
   * Returns a hash function implementing the Message Authentication Code (MAC) algorithm, using the
   * MD5 (128 hash bits) hash function and the given secret key.
   *
   * <p>If you are designing a new system that needs HMAC, prefer {@link #hmacSha256} or other

          # - you are installing Scorecard on a *private* repository
          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
          # repo_token: ${{ secrets.SCORECARD_TOKEN }}

          # Public repositories:
          #   - Publish results to OpenSSF REST API for easy access by consumers