auth method
Implementation
Future<CuppsCommandResponse> auth({required String airlineID, String mode = "HDC",String font = "L",}) async {
// final setLogoRes = await aeaRequest("EP#AIRLINEID=$airlineID#HARDCODE=HDC#FONT=$font#ERR3IGN=Y");
final setLogoRes = await aeaRequest("EP#AIRLINEID=$airlineID#HARDCODE=HDC#FONT=$font");
return setLogoRes;
// print(setLogoRes);
// send(xml: req.toXML());
}