@class NSString; @interface MPKeyValueObserver : NSObject @property (readonly, weak, nonatomic) id object; @property (readonly, copy, nonatomic) NSString *keyPath; @property (readonly, copy, nonatomic) id /* block */ handler; - (void)dealloc; - (void)observeValueForKeyPath:(id)a0 ofObject:(id)a1 change:(id)a2 context:(void *)a3; - (void).cxx_destruct; - (id)initWithObject:(id)a0 keyPath:(id)a1 options:(unsigned long long)a2 handler:(id /* block */)a3; @end