an>

        <span class="c1"># The data loader</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">train_loader</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">val_loader</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">test_loader</span> <span class="o">=</span> <span class="kc">None</span>

        <