predictions</span> <span class="o">=</span> <span class="kc">None</span>

        <span class="c1"># The data</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">X_train</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">X_val</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">X_test</span> <span class="o">=