Sample handle different JSON format

main.dart

Future _loadSampleJson() async {
  String jsonString = await rootBundle.loadString("assets/sample.json");
  final jsonData = json.decode(jsonString);
  if (jsonData['status'] == 0) {
    final formatA = FormatA.fromJson(jsonData);
  } else if (jsonData['status'] == 1) {
    final formatB = FormatB.fromJson(jsonData);
  } else {
    print('Format json tidak diketahui');
  }
}