@class NSObject; @protocol OS_dispatch_queue, OS_dispatch_source; @interface OITSUDelayTimer : NSObject @property (retain, nonatomic, setter=_setDispatchQueue:) NSObject<OS_dispatch_queue> *_dispatchQueue; @property (retain, nonatomic, setter=_setDispatchTimer:) NSObject<OS_dispatch_source> *_dispatchTimer; @property (nonatomic, getter=_isCancelled, setter=_setCancelled:) BOOL _cancelled; @property (nonatomic) BOOL automaticallyCancelPendingBlockUponSchedulingNewBlock; - (id)init; - (void)dealloc; - (void)cancel; - (id)initWithTargetSerialQueue:(id)a0; - (void)afterDelay:(double)a0 processBlock:(id /* block */)a1; - (void)_reallyCancel; @end