@protocol HKCBDiscovery; @interface HKBluetoothDeviceDataSource : HKObserverBridge { struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _lock; id<HKCBDiscovery> _lock_discovery; BOOL _lock_isDiscoveryActive; Class _DiscoveryType; } @property (readonly, nonatomic) id<HKCBDiscovery> discovery; - (id)init; - (void)dealloc; - (void)unregisterBridgedObserver:(id)a0 forKey:(id)a1; - (void)unregisterObserverForDevicePairingChanges:(id)a0; - (void).cxx_destruct; - (id)makeAndRegisterBridgedObserverForKey:(id)a0 handle:(id)a1; - (id)initWithDiscoveryType:(Class)a0; - (id)pairedDevicesWithError:(id *)a0; - (void)registerObserverForDevicePairingChanges:(id)a0 updateHandler:(id /* block */)a1; @end