System/Library/PrivateFrameworks/ChatKit.framework

CKAVMediaObject.h

Download CKAVMediaObject.h

1. NSObject
2. >
3. CKMediaObject

@interface CKAVMediaObject : CKMediaObject

@property (nonatomic) BOOL durationLoaded;
@property (nonatomic) double duration;

+ (id)durationCache;

- (id)description;

@end