">&quot;weight&quot;</span><span class="p">])</span> <span class="ow">in</span> <span class="p">[</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">]:</span>
                    <span class="n">specials</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
                    <span class="n">specials</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span