readAttributeReactivePowerPhaseB(completion:)
Declaration
func readAttributeReactivePowerPhaseB(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeReactivePowerPhaseB() async throws -> NSNumberfunc readAttributeReactivePowerPhaseB(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeReactivePowerPhaseB() async throws -> NSNumber