@class RMRelativeMotionManager; @interface RMMediaSessionObserver : NSObject @property (retain, nonatomic) RMRelativeMotionManager *manager; - (void).cxx_destruct; - (void)startSessionStatusUpdatesForClientMode:(long long)a0 toQueue:(id)a1 withHandler:(id /* block */)a2; - (void)stopSessionStatusUpdates; @end