r</span><span class="p">)</span>
        <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">target_actor</span><span class="o">.</span><span class="n">parameters</span><span class="p">():</span>
            <span class="n">p</span><span class="o">.</span><span class="n">requires_grad</span> <span class="o">=</span> <span class="kc">False</span>
        <span class="bp">self</span><span class="o">.</span><span cla