span class="bp">self</span><span class="p">,</span> <span class="nb">id</span><span class="p">,</span> <span class="n">vMap</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">dfsCode</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        The `__init__` function initializes a graph object with optional parameters for vertex mapping and