Mark the progressbar as finished.
        :return: None

def _finish_progress(self):
        """
        Mark the progressbar as finished.
        :return: None
        """

        if self._show_progressbar:
            if self._progressbar is None:
                self._initialize_progressbar()
            if self._progressbar is not None:
                self._progressbar.finish()

        if self._progress_callback is not None:
            self._progress_callback(100.0)