readAttributeNullableOctetString(completionHandler:)
Declaration
func readAttributeNullableOctetString(completionHandler: @escaping @Sendable (Data?, (any Error)?) -> Void)func readAttributeNullableOctetString() async throws -> Datafunc readAttributeNullableOctetString(completionHandler: @escaping @Sendable (Data?, (any Error)?) -> Void)func readAttributeNullableOctetString() async throws -> Data