IHandshakeSld

function isApprovedOrOwner(address spender, uint256 tokenId) external view returns (bool);

function registerSld(address _to, bytes32 _tldNamehash, string calldata _label) external payable;

function ownerOf(uint256 _id) external view returns (address);

function getRegistrationStrategy(bytes32 _parentNamehash) external view returns (ISldRegistrationStrategy);

function namehashToParentMap(bytes32 _childNamehash) external view returns (bytes32 _parentNamehash);

function name(bytes32 _sldNamehash) external view returns (string memory _fullDomain);

function expiry(bytes32 _namehash) external view returns (uint256 _expiry);

function parent(bytes32) external view returns (string memory _parentName);

function namehashToLabelMap(bytes32 _childNamehash) external view returns (string memory);