lass="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">not_dummy_points</span><span class="p">)</span>
        <span class="n">x</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">sum</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>

        <span class="k">return</span> <span class="n">x</span></div>

    <span class="k">def</span> <span class="fm">__re