n class="n">x</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">pow</span><span class="p">(</span><span class="mi">2</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">mul</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">sharpness</span><span class="p">)</span>
        <span class="n">x</span> <span class="o">=</