AliyunTrack
@interface AliyunTrack : AliyunJSONModel* Internal class.
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                  * The track id. DeclarationObjective-C @property (nonatomic) int idTrack;
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                  * The volume. DeclarationObjective-C @property (nonatomic) float volume;
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                  * The array of clips. DeclarationObjective-C @property (nonatomic, strong) NSMutableArray<AliyunClip *> *clipList;
 AliyunTrack Class Reference
        AliyunTrack Class Reference