<li>
    <a href="/detail-for-class/[% tree.name %]" class="btn btn-small class-detail">[% tree.name %]</a>
    [% IF tree.has_children %]
        <ul>
        [% FOREACH child IN tree.children %]
            [% PROCESS partials/class_inheritance_tree.html tree = child %]
        [% END %]
        </ul>
    [% END %]
</li>