f</span> <span class="fm">__init__</span><span class="p">(</span>
            <span class="bp">self</span><span class="p">,</span> <span class="n">estimator</span><span class="p">:</span> <span class="n">LinearModel</span> <span class="o">=</span> <span class="n">LinearRegression</span><span class="p">(),</span>
            <span class="n">order</span><span class="p">:</span> <span class="n">Tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="nb">int</span><s