n class="p">,</span>
        <span class="n">n_points</span><span class="o">=</span><span class="mi">11</span><span class="p">,</span>
    <span class="p">)</span> <span class="o">-&gt;</span> <span class="kc">None</span><span class="p">:</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">_decisiontree</span> <span class="o">=</span> <span class="n">decisiontree</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
        <span class="bp">self</