@class NSString, NSNotificationCenter, NSObject; @interface CRKNotificationObservation : NSObject @property (readonly, copy, nonatomic) NSString *notificationName; @property (readonly, nonatomic) NSNotificationCenter *notificationCenter; @property (retain, nonatomic) NSObject *object; @property (copy, nonatomic) id /* block */ notificationHandler; + (id)observationWithNotificationCenter:(id)a0 notificationName:(id)a1 object:(id)a2 notificationHandler:(id /* block */)a3; - (void)beginObserving; - (void)dealloc; - (void)invalidate; - (void).cxx_destruct; - (void)endObserving; - (id)initWithNotificationCenter:(id)a0 notificationName:(id)a1 object:(id)a2 notificationHandler:(id /* block */)a3; - (void)notificationDidFire:(id)a0; @end