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