@interface CRXUNotificationCenter : NSObject + (id)sharedInstance; - (void)removeObserver:(int)a0; - (void)postNotificationName:(id)a0; - (int)addBlockObserver:(id /* block */)a0 queue:(id)a1 name:(id)a2; - (int)addObserver:(id)a0 selector:(SEL)a1 queue:(id)a2 name:(id)a3; @end