s</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">down_degree</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">]</span></div>


<div class="viewcode-block" id="MergeTree.add_node">
<a class="viewcode-back" href="../../../modules/reeb/mergetree.html#cereeberus.reeb.merge.MergeTree.add_node">[docs]</a>
    <span class="k">def</span> <span class="nf">add_node</sp