pan><span class="n">Q_b</span><span class="p">,</span>
            <span class="p">)</span>

        <span class="k">else</span><span class="p">:</span>
            <span class="n">state</span><span class="p">,</span> <span class="n">next_state</span><span class="p">,</span> <span class="n">reward</span><span class="p">,</span> <span class="n">done</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">env</span><span class="o">.</span><span class="n">step</span>