     <span class="n">vertex_order</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_determine_vertex_order</span><span class="p">(</span><span class="n">graph</span><span class="p">,</span> <span class="n">kwds</span><span class="p">)</span>
        <span class="n">edge_order</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_determine_edge_order</span><span class="p">(</span><span class="n">graph</span><spa