{% macro renderDescendants(doc, docType, title='', recursed=false) %}
  {% set descendants = doc.descendants | filterByPropertyValue('docType', docType) %}
  {% if descendants.length %}
  {% if title %}<h2>{$ title $}</h2>{% endif %}
  <ul {% if not recursed %}class="descendants {$ docType $}"{% endif %}>
  {% for descendant in descendants %}
    <li>
      <pre class="prettyprint lang-ts"><code>{$ descendant.name $}</code></pre>
      {$ renderDescendants(descendant, docType, '', true) $}
    </li>
  {% endfor %}
  </ul>
  {% endif %}
{% endmacro %}