@class CADisplayLink; @interface ISDisplayLink : NSObject @property (copy, nonatomic) id /* block */ updateHandler; @property (copy, nonatomic) id /* block */ completionHandler; @property (retain, nonatomic) CADisplayLink *displayLink; @property (nonatomic) long long preferredFramesPerSecond; - (void)dealloc; - (void)start; - (void)stop; - (id)initWithUpdateHandler:(id /* block */)a0 completionHandler:(id /* block */)a1; - (void)_update:(id)a0; - (void).cxx_destruct; - (void)_callUpdateHandler; @end