.</span><span class="n">any</span><span class="p">():</span>
                <span class="n">Mcat</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">eye</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
            <span class="k">else</span><span class="p">:</span>
                <span class="n">Mcat</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">diag</span><span class="p">((</span