@interface SGCuratedChangeNotifications : NSObject + (void)_addObserver:(id /* block */)a0 forObjectLifetime:(id)a1 listenerClass:(Class)a2; + (id)_getListener:(Class)a0; + (id)_getListenerByClassMap; + (void)addAddressBookObserver:(id /* block */)a0 forObjectLifetime:(id)a1; + (void)addCalendarObserver:(id /* block */)a0 forObjectLifetime:(id)a1; + (void)simulateAddressBookChange; + (void)simulateCalendarChange; @end