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