<span class="o">=</span> <span class="n">rowLabels</span><span class="p">,</span> <span class="n">cols</span> <span class="o">=</span> <span class="n">rowLabels</span><span class="p">)</span>
            <span class="k">return</span> <span class="n">D</span>

        <span class="c1"># Max difference to check </span>
        <span class="n">max_diff</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">L</span><span class="o">-</span><span class="bp">self</span><