ile</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
            <span class="sd">&quot;&quot;&quot;Debug helper to print the ABC registry.&quot;&quot;&quot;</span>
            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Class: </span><span class="si">{</span><span class="bp">cls</span><span class="o">.</span><span class="vm">__module__</span><span class="si">}</span><span class="s2">.</span><span class="si">{</span>