<html>
  <p>conditional is {{#simple}}{{#boolean}}true{{/boolean}}{{/simple}}</p>
  <ul>
    {{#simple.list}}
    <li>{{.}}</li>
    {{/simple.list}}
  </ul>
  <p>user {{#is_authenticated}}is authenticated{{/is_authenticated}}</p>
  <p>csrf is {{csrf_token}}</p>
  <p>username is {{user.username}}</p>
  <p>username is {{#user}}{{username}}{{/user}}</p>
</html>
