getPlatformVersion method
Implementation
@override
Future<String?> getPlatformVersion(String number, String msg ) async {
Map<String,dynamic > args = Map<String,dynamic>();
args.putIfAbsent("msg", () => msg);
args.putIfAbsent("number", () => number);
final version = await methodChannel.invokeMethod<String>('sendMessage', args);
return version;
}