System/Library/PrivateFrameworks/AVConference.framework
VCCaptionTaskInfo.h
@class SFSpeechRecognitionTask;
@interface VCCaptionTaskInfo : NSObject
@property SFSpeechRecognitionTask *task;
@property long long token;
@property unsigned int updateNumber;
@property unsigned int utteranceNumber;
- (id)initWithTask:(id)a0 token:(long long)a1 utteranceNumber:(unsigned int)a2;
@end