code: def create_sitemap(app, exception):
      
      if (not app.config['html_theme_options'].get('base_url', '') or
             exception is not None or
             not app.sitemap_links):
          return
  
      filename = app.outdir + "/sitemap.xml"
      print("Generating sitemap.xml in %s" % filename)
  
      root = ET.Element("urlset")
      root.set("xmlns", "http://www.sitemaps.org/schemas/sitemap/0.9")
  
      for link in app.sitemap_links:
          url = ET.SubElement(root, "url")
          ET.SubElement(url, "loc").text = link
  
      ET.ElementTree(root).write(filename)
docs: Generates the sitemap.xml from the collected HTML page links