@class NSString, TRIAsset; @interface TRIFile : TRIPBMessage @property (retain, nonatomic) TRIAsset *asset; @property (nonatomic) BOOL hasAsset; @property (copy, nonatomic) NSString *path; @property (nonatomic) BOOL hasPath; @property (nonatomic) BOOL isOnDemand; @property (nonatomic) BOOL hasIsOnDemand; + (id)descriptor; - (BOOL)requiresDownload; @end