```\\nfunction toShortString(string memory str) internal pure returns (ShortString) {\\n    bytes memory bstr = bytes(str);\\n    if (bstr.length > 31) {\\n        revert StringTooLong(str);\\n    }\\n    return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\\n}\\n```\\n