def METHOD_NAME(self):
    """
    Creates the GUI containing the ArtistGroupWidget and the matplotlib figure axes.
    """
    # Filenames to load
    self._filename = '{}_test_*.csv'.format(self.__class__.__name__)
    self._filename2 = '{}_test2_*.csv'.format(self.__class__.__name__)
    # Read the data
    filenames = [self._filename, self._filename2]
    self._control, self._widget, self._window = main(filenames, mooseutils.VectorPostprocessorReader)