eference internal" href="#description-1">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="#properties-1">Properties</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="#sequence-nodes">Sequence nodes</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#description-2">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="#properties-2">Properties</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference 