{% if nav_item.children %}
    <ul class="subnav">
    <li><span>{{ nav_item.title }}</span></li>

        {% for nav_item in nav_item.children %}
            {% include 'toc.html' %}
        {% endfor %}
    </ul>
{% else %}
  {% if not nav_item.title.startswith("_") %}
    <li class="toctree-l1 {% if nav_item.active%}current{%endif%}">
        <a class="{% if nav_item.active%}current{%endif%}" href="{{ nav_item.url }}">{{ nav_item.title }}</a>
<!-- Removed the subsection list that duplicates subsection title in most cases -->
    </li>
  {% endif %}
{% endif %}