System/Library/Frameworks/Foundation.framework

NSOldValueObservationTransformer.h

Download NSOldValueObservationTransformer.h

1. NSObject
2. >
3. NSObservationSource
4. >
5. NSObservationTransformer

@interface NSOldValueObservationTransformer : NSObservationTransformer {
    id _lastValue;
}

+ (id)oldValuesTransformer;

- (void)dealloc;
- (void)_receiveBox:(id)a0;

@end