an><span class="p">,</span> <span class="n">env_index</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Method that is called at each step of each episode in the training process. It updates some user_data</span>
<span class="sd">        variables to be used later on.</s