@class NSString, TRIPBTimestamp; @interface TRIUnsubscribeChannelPersistedTask : TRIPBMessage @property (copy, nonatomic) NSString *experimentId; @property (nonatomic) BOOL hasExperimentId; @property (retain, nonatomic) TRIPBTimestamp *startTimestamp; @property (nonatomic) BOOL hasStartTimestamp; + (id)descriptor; @end