<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url @for="url in urls">
    <loc>{url.loc}</loc>
    <lastmod>{url.last_mod}</lastmod>
    <priority @if="not blank(url.priority) and url.priority > 0.0 and url.priority < 1.0">
      {url.priority}
    </priority>
  </url>
</urlset>