@class NSObject; @protocol OS_dispatch_queue; @interface TSUDispatchLock : NSObject @property (readonly, nonatomic) NSObject<OS_dispatch_queue> *underlyingQueue; - (id)init; - (id)initWithLabel:(id)a0; - (void).cxx_destruct; - (void)assertHasReadLock; - (void)assertHasWriteLock; - (void)performAsynchronousRead:(id /* block */)a0; - (void)performAsynchronousWrite:(id /* block */)a0; - (void)performSynchronousRead:(id /* block */)a0; - (void)performSynchronousWrite:(id /* block */)a0; @end