@class NSOperationQueue; @interface FCAsyncSerialQueue : NSObject @property (retain, nonatomic) NSOperationQueue *serialOperationQueue; @property (nonatomic) BOOL suspended; @property (readonly, nonatomic) NSOperationQueue *underlyingOperationQueue; - (id)init; - (void)cancelAllBlocks; - (void)enqueueBlock:(id /* block */)a0; - (void).cxx_destruct; - (void)enqueueBlockForMainThread:(id /* block */)a0; - (id)initWithQualityOfService:(long long)a0; - (void)withQualityOfService:(long long)a0 enqueueBlock:(id /* block */)a1; - (void)withQualityOfService:(long long)a0 enqueueBlockForMainThread:(id /* block */)a1; - (void)enqueueOperation:(id)a0; - (id)initWithUnderlyingQueue:(id)a0 qualityOfService:(long long)a1; @end