@class NSString, MRUHardwareVolumeController; @protocol MPVolumeControllerDataSource; @interface MRUHardwareVolumeAssertion : NSObject <BSInvalidatable> @property (weak, nonatomic) MRUHardwareVolumeController *hardwareVolumeController; @property (weak, nonatomic) id<MPVolumeControllerDataSource> volumeDataSource; @property (copy, nonatomic) NSString *reason; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)dealloc; - (void)invalidate; - (void).cxx_destruct; - (id)initWithHardwareVolumeController:(id)a0 volumeDataSource:(id)a1 reason:(id)a2; @end