 class="n">node</span><span
            class="p">)</span></div>
            <span class="c1"># # UPDATE SIZE OF PARENTS</span>
            <span class="c1"># p = node.parent</span>
            <span class="c1"># while p:</span>
            <span class="c1">#     p.update_size()</span>
            <span class="c1">#     p = p.parent</span>

    <span class="k">def</span> <span class="nf">_remove</span><span class="p">(</span><span class="bp">self</span><span
            class="p">,</span> <span class="n">no