@class NSString, MFLock; @protocol MFGuaranteedCollectingDataConsumer; @interface MFMutableFilterDataConsumer : MFBaseFilterDataConsumer <MFGuaranteedCollectingDataConsumer> { id<MFGuaranteedCollectingDataConsumer> _mainConsumer; MFLock *_consumerLock; BOOL _isDone; } @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (long long)appendData:(id)a0; - (void)done; - (id)data; - (void).cxx_destruct; - (void)addDataConsumer:(id)a0; - (id)initWithMainConsumer:(id)a0; @end