pan> <span class="n">Objective</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">child_model</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">notebook</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="p">)</span>

        <span class="