anchor.diff:    final vectorView = filters.GetView;
     print('VectorView has ${vectorView.length} elements.');
   
  -  final pIndex = allocator<Uint32>();
     var containsElement = filters.IndexOf('.jpeg', pIndex);
     print(containsElement
         ? 'The index of ".jpeg" is ${pIndex.value}.'
  
positive.code: 
  void main() async {
    winrtInitialize();
  
    final allocator = Arena();
  
    final object = CreateObject(
        'Windows.Storage.Pickers.FileOpenPicker', IID_IFileOpenPicker);
  
negative.code:   filters.Clear();
    print('Vector has ${filters.Size} elements.');
  
    free(pIndex);
    free(filters.ptr);
    winrtUninitialize();
  }
  