Zone Interface

function isValidOrder(bytes32 orderHash, address caller, address offerer, bytes32 zoneHash) external view returns (bytes4 validOrderMagicValue)

function isValidOrderIncludingExtraData(bytes32 orderHash, address caller, struct AdvancedOrder order, bytes32[] priorOrderHashes, struct CriteriaResolver[] criteriaResolvers) external view returns (bytes4 validOrderMagicValue)