@class HKObserverSet, NSSet, NSDictionary, HKHealthStore, HKQuery; @interface HKAudioExposureDevicesDataSource : NSObject @property (nonatomic, getter=isReady) BOOL ready; @property (nonatomic) unsigned long long deviceType; @property (copy, nonatomic) NSSet *devices; @property (copy, nonatomic) NSDictionary *devicesByName; @property (retain, nonatomic) HKHealthStore *healthStore; @property (retain, nonatomic) HKObserverSet *observers; @property (retain, nonatomic) HKQuery *query; @property (readonly, nonatomic) long long deviceCount; - (void)removeObserver:(id)a0; - (void).cxx_destruct; - (void)_cleanUp; - (void)addObserver:(id)a0; - (void)startQuery; - (id)initWithDeviceType:(unsigned long long)a0 healthStore:(id)a1; - (id)_localizedNameForDevice:(id)a0; - (id)_makeDeviceQueryForDeviceType; - (void)_notify_dataSourceIsReady; - (id)_sampleTypeForDeviceType; - (void)cancelQuery; @end