readAttributeLampManufacturer(completionHandler:)
Declaration
func readAttributeLampManufacturer(completionHandler: @escaping @Sendable (String?, (any Error)?) -> Void)func readAttributeLampManufacturer() async throws -> Stringfunc readAttributeLampManufacturer(completionHandler: @escaping @Sendable (String?, (any Error)?) -> Void)func readAttributeLampManufacturer() async throws -> String