@class NSMutableDictionary, NSString, NSMutableSet, NSObject, NSMutableArray; @protocol OS_dispatch_queue; @interface HDDeviceInformationService : HDHealthService @property (retain, nonatomic) NSMutableDictionary *characteristics; @property (retain, nonatomic) NSMutableDictionary *propertyValues; @property (retain, nonatomic) NSMutableSet *propertiesLeftToFetch; @property (retain, nonatomic) NSObject<OS_dispatch_queue> *queue; @property (nonatomic) BOOL deviceInformationHasBeenLoaded; @property (retain, nonatomic) NSMutableArray *pendingDeviceInformationLoadedBlocks; @property (readonly) NSString *manufacturerName; @property (readonly) NSString *modelNumber; @property (readonly) NSString *serialNumber; @property (readonly) NSString *hardwareRevision; @property (readonly) NSString *firmwareRevision; @property (readonly) NSString *softwareRevision; @property (nonatomic) BOOL fetchLimitedCharacteristics; + (id)serviceUUID; + (long long)serviceType; + (id)implementedProperties; - (void).cxx_destruct; - (id)initWithServiceManager:(id)a0 peripheral:(id)a1 advertisementData:(id)a2 profile:(id)a3; - (void)performWhenDeviceInformationHasBeenLoaded:(id /* block */)a0; - (void)peripheral:(id)a0 didDiscoverCharacteristic:(id)a1; - (void)peripheral:(id)a0 didUpdateValueForCharacteristic:(id)a1 updateTime:(id)a2 error:(id)a3; - (void)readProperty:(id)a0; @end