@interface NSMapObservationTransformer : NSObservationTransformer { id _block; int _tag; } - (void)dealloc; - (void)_receiveBox:(id)a0; - (id)initWithBlock:(id)a0 tag:(int)a1; @end
@interface NSMapObservationTransformer : NSObservationTransformer { id _block; int _tag; } - (void)dealloc; - (void)_receiveBox:(id)a0; - (id)initWithBlock:(id)a0 tag:(int)a1; @end