rtex to be added.</span>
<span class="sd">            x (float):</span>
<span class="sd">                The x-coordinate of the vertex.</span>
<span class="sd">            y (float):</span>
<span class="sd">                The y-coordinate of the vertex.</span>

<span class="sd">        &quot;&quot;&quot;</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">add_node</span><span class="p">(</span><span class="n">vertex</span><span class="p">)</span>
  