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