@class NSHashTable; @interface PXEventCoalescer : NSObject { NSHashTable *_observers; } + (id)delayedCoalescerWithDelay:(double)a0; + (id)rateLimitingCoalescerWithRate:(double)a0; - (id)init; - (void)registerObserver:(id)a0; - (void)unregisterObserver:(id)a0; - (void).cxx_destruct; - (void)cancel; - (void)signalObservers; - (void)inputEvent; @end