an class="o">.</span><span class="n">getEdgeList</span><span class="p">():</span>
            <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">v1</span> <span class="o">==</span> <span class="n">v1</span> <span class="ow">and</span> <span class="n">e</span><span class="o">.</span><span class="n">v2</span> <span class="o">==</span> <span class="n">v2</span><span class="p">:</span>
                <span class="k">return</span> <span class="n">e</span>
            <span