@interface _TtCC15PhotosUIPrivate14StoryViewModelP33_6A5C5F7F1B14BF601058A3392DAE899B7Mutator : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ observable;
    void /* unknown type, empty encoding */ _readinessStatus;
    void /* unknown type, empty encoding */ _timelineAttributes;
}

@end