@class NSString, NSMutableSet; @protocol HMFLogging; @interface HMDNotificationRegistration : HMFObject <HMFLogging> @property (readonly, nonatomic) NSMutableSet *registeredNotifications; @property (readonly, weak, nonatomic) id<HMFLogging> registerer; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)logCategory; @end