@interface _TtCE16MagnifierSupportCSo9UIControlP33_532CD06505920E79F40BB75B7D7CB8DE20ControlEventObserver : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ control;
    void /* unknown type, empty encoding */ event;
    void /* unknown type, empty encoding */ subject;
}

- (void)handleEventFrom:(id)a0;

@end