</span><span class="o">+</span><span class="n">x</span><span class="p">)</span><span class="o">.</span><span class="n">pow</span><span class="p">(</span><span class="n">exponent</span><span class="o">.</span><span class="n">abs</span><span class="p">())</span>

        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">pointwise_activation_threshold</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
  