n">get</span><span class="p">(</span><span class="s2">&quot;n&quot;</span><span class="p">)</span>
            <span class="n">values</span> <span class="o">=</span> <span class="n">prop_grid</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;values&quot;</span><span class="p">)</span>

            <span class="k">if</span> <span class="n">values</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
                <span cl