span>

        <span class="c1"># Splitting the (train/val) dataset into train and val datasets.</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">X_train</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">X_val</span><span class="p">,</span> \
        <span class="bp">self</span><span class="o">.</span><span class="n">y_train</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y_v