">n</span><span class="p">,</span> <span class="n">inlast</span><span class="o">=</span><span
            class="kc">True</span><span class="p">)</span>
        <span class="k">if</span> <span class="p">(</span><span class="n">n</span><span class="p">[</span><span
            class="mi">1</span><span class="p">],</span> <span class="n">n</span><span class="p">[</span><span
            class="mi">0</span><span class="p">])</span> <span class="ow">in</span> <span
            class="n">tree_edge_2_node</span><