function getNotaryInfo(
    address notary
  ) public view validAddress(notary) returns (
    address,
    uint256,
    uint256,
    string,
    uint32
  ) {
    require(hasNotaryBeenAdded(notary));
    NotaryInfo memory info = notaryInfo[notary];
    return (
      notary,
      info.responsesPercentage,
      info.notarizationFee,
      info.notarizationTermsOfService,
      uint32(info.addedAt)
    );
  }