PHChangeRequest The abstract base class of the framework’s photo library change requests. Declarationclass PHChangeRequest RelationshipsInherits FromNSObjectInherited ByPHAssetChangeRequestPHAssetCollectionChangeRequestPHAssetResourceUploadJobChangeRequestPHCollectionListChangeRequestPHProjectChangeRequestConforms ToCVarArgCustomDebugStringConvertibleCustomStringConvertibleEquatableHashableNSObjectProtocol See AlsoUpdating the LibraryRequesting Changes to the Photo LibraryperformChanges(_:completionHandler:)performChangesAndWait(_:)PHAssetChangeRequestPHAssetCollectionChangeRequestPHCollectionListChangeRequestPHObjectPlaceholder