@class NSString; @interface MTDeviceCapacityMonitor : NSObject { void /* unknown type, empty encoding */ diskAccessQueue; void /* unknown type, empty encoding */ _capacityChangeObservers; void /* unknown type, empty encoding */ capacityThreshold; void /* unknown type, empty encoding */ url; void /* unknown type, empty encoding */ vfsSource; void /* unknown type, empty encoding */ ___capacityLevel; void /* unknown type, empty encoding */ activeObserver; void /* unknown type, empty encoding */ _activeNotificationName; } @property (class, nonatomic, readonly) MTDeviceCapacityMonitor *shared; @property (nonatomic, copy) NSString *activeNotificationName; - (id)init; - (void)dealloc; - (void).cxx_destruct; - (long long)addCapacityChangeObserverWithOptions:(long long)a0 callback:(id /* block */)a1; - (void)capacityLevel:(id /* block */)a0; - (void)removeCapacityChangeObserverWith:(long long)a0; @end