@interface _TtC12PhotosUICoreP33_25E89F8648EB33DB900A566ECE80EAE544PXPhotoLibraryDefaultsChangeObserverExtended : NSObject <PXPhotoLibraryDefaultsChangeObserver> {
    void /* unknown type, empty encoding */ block;
}

- (id)init;
- (void)observable:(id)a0 didChange:(unsigned long long)a1 context:(void *)a2;
- (void).cxx_destruct;
- (void)photoLibraryLocalDefaults:(id)a0 didChangeValueForKey:(id)a1;

@end