API721 HookInterfacesIJB721Hook本页总览IJB721Hook Git Source Inherits: IJBRulesetDataHook, IJBPayHook, IJBCashOutHook Functions DIRECTORY function DIRECTORY() external view returns (IJBDirectory); METADATA_ID_TARGET function METADATA_ID_TARGET() external view returns (address); PROJECT_ID function PROJECT_ID() external view returns (uint256);