pan class="bp">self</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Method to find a bounding box of the vertex coordinates in the graph.</span>

<span class="sd">        Returns:</span>
<span class="sd">            list: A list of tuples representing the minimum and maximum x and y coordinates.</span>

<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">if</span> <span class="ow">not</span> <span class