System/Library/PrivateFrameworks/Message.framework

_MFSharedBufferedDataConsumer.h

Download _MFSharedBufferedDataConsumer.h

1. NSObject
2. >
3. MFBufferedDataConsumer

@interface _MFSharedBufferedDataConsumer : MFBufferedDataConsumer

- (void)done;
- (void)_reallyDone;

@end