findCountryByCode method
Find a country by its ISO2 code
Implementation
@override
Future<CityResult?> findCountryByCode(String code) async {
final result = await methodChannel.invokeMethod<Map>('findCountryByCode', {
'code': code,
});
return result != null
? CityResult.fromMap(Map<String, dynamic>.from(result))
: null;
}