lass="n">freeze_exponent</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>
            <span class="bp">self</span><span class="o">.</span><span class="n">pointwise_activation_threshold</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="bp">self</span><span c