="o">=</span> <span class="n">train_test_split</span><span class="p">(</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">data_X</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">data_y</span><span class="p">,</span> <span class="n">test_size</span><span class="o">=</span><span class="mf">0.2</span><span class="p">,</span> <span class="n">shuffle</span><span class="o">=</span><span class="kc">False</span><span class="p">)</