def</span> <span class="nf">getEdge</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">v1</span><span class="p">,</span> <span class="n">v2</span><span class="p">):</span>
        <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">vMap</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">v1</span><span class="p">)</span><sp