printCoupon method
Implementation
@override
Future<int?> printCoupon(PrintCouponPayload payload) async {
return await methodChannel.invokeMethod<int>(
'printCoupon', payload.toMap());
}
@override
Future<int?> printCoupon(PrintCouponPayload payload) async {
return await methodChannel.invokeMethod<int>(
'printCoupon', payload.toMap());
}