pan class="k">if</span> <span class="n">add_noise</span><span class="p">:</span>
            <span class="n">actions</span> <span class="o">+=</span> <span class="n">torch</span><span class="o">.</span><span class="n">randn_like</span><span class="p">(</span><span class="n">actions</span><span class="p">)</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">expl_noise</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span clas