">&quot;&quot;&quot;</span>
<span class="sd">        Returns the coordinates of the given vertex.</span>

<span class="sd">        Parameters:</span>
<span class="sd">            vertex (str):</span>
<span class="sd">                The vertex whose coordinates are to be returned.</span>

<span class="sd">        Returns:</span>
<span class="sd">            tuple: The coordinates of the vertex.</span>

<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">return</span> <span class="bp">