@class NSObject, NSHashTable;
@protocol OS_dispatch_queue;
@interface NRActiveDeviceAssertionMonitor : NSObject {
int _assertionToken;
NSHashTable *_observers;
NSObject<OS_dispatch_queue> *_workQueue;
}
@property (readonly, nonatomic) BOOL hasActiveAssertion;
+ (id)sharedInstance;
- (void)removeObserver:(id)a0;
- (void).cxx_destruct;
- (void)addObserver:(id)a0;
@end