@class NSMutableArray, NSObject; @protocol OS_dispatch_queue; @interface PLConcurrentQueue : NSObject { NSObject<OS_dispatch_queue> *_internalQueue; NSMutableArray *_internalQueue_pendingBlocks; long long _internalQueue_usedWidth; } @property (readonly, nonatomic) NSObject<OS_dispatch_queue> *targetQueue; @property (readonly, nonatomic) long long width; - (id)init; - (void)dispatchAsync:(id /* block */)a0; - (void).cxx_destruct; - (void)_internalQueue_tryDispatchingNextPendingBlock; - (id)initWithTargetQueue:(id)a0 width:(long long)a1; @end