@class NSString, RBSAssertion; @protocol VSBackgroundTaskDelegate; @interface VSBackgroundTask : NSObject @property (retain, nonatomic) RBSAssertion *assertion; @property (copy, nonatomic) NSString *name; @property (weak, nonatomic) id<VSBackgroundTaskDelegate> delegate; - (BOOL)begin; - (id)init; - (void)end; - (void).cxx_destruct; @end