elginCashier method
*elginCashier
If you have an elgin cashier, you can just open it with this!
Implementation
Future<int> elginCashier() async {
int? elginCash = await platform?.invokeMethod('elginCashier') ?? 9999;
if (elginCash < 0) {
throw ElginException(elginCash);
}
return elginCash;
}