@class AVOutputContextCommunicationChannelInternal; @protocol AVOutputContextCommunicationChannelImpl; @interface AVOutputContextCommunicationChannel : NSObject { AVOutputContextCommunicationChannelInternal *_ivars; } @property (readonly, nonatomic) struct __CFString { } *commChannelUUID; @property (readonly, nonatomic) id impl; - (id)init; - (void)dealloc; - (id)initWithOutputContextCommunicationChannelImpl:(id)a0; - (void)sendData:(id)a0 completionHandler:(id /* block */)a1; @end