How to use the finviz.helper_functions.scraper_functions.get_total_rows function in finviz

def __check_rows(self):
        """
        Checks if the user input for row number is correct.
        Otherwise, modifies the number or raises NoResults error.
        """

        self._total_rows = scrape.get_total_rows(self._page_content)

        if self._total_rows == 0:
            raise NoResults(self._url.split('?')[1])
        elif self._rows is None or self._rows > self._total_rows:
            return self._total_rows
        else:
            return self._rows