@class PHPhotoLibrary, NSString; @interface WFSharedPhotoLibrary : NSObject <PHPhotoLibraryAvailabilityObserver> @property (retain, nonatomic) PHPhotoLibrary *systemPhotoLibrary; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)sharedLibrary; @end