getMiniProgramLoaderJson method
Implementation
Future<Uint8List?> getMiniProgramLoaderJson() async{
final directoryPath = await _getArchiveDirectoryPath(_module.id);
final filePath = "$directoryPath/app_loader.json";
final file = File(filePath);
if(!file.existsSync()) return null;
final bytes = await file.readAsBytes();
return bytes;
}