@class NSObject; @protocol OS_dispatch_queue; @interface CalDispatchQueueAsyncBlockPerformer : NSObject <CalAsyncBlockPerformer> @property (readonly, nonatomic) NSObject<OS_dispatch_queue> *queue; - (id)initWithQueue:(id)a0; - (id)performAsync:(id /* block */)a0; - (void).cxx_destruct; - (id)performAfterDelay:(double)a0 block:(id /* block */)a1; @end