code: def render_chart_to_file(self, template_name: str, chart: Any, path: str):
          
          tpl = self.env.get_template(template_name)
          html = tpl.render(chart=self.generate_js_link(chart))
          write_utf8_html_file(path, self._reg_replace(html))
docs: Render a chart or page to local html files.
  
          :param chart: A Chart or Page object
          :param path: The destination file which the html code write to
          :param template_name: The name of template file.