>  239</span>&#160;      <span class="keywordflow">if</span>(!sbg.empty()) {</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;        os &lt;&lt; <span class="stringliteral">&quot;subgraph cluster_p&quot;</span> &lt;&lt; node &lt;&lt; <span class="stringliteral">&quot; {\nlabel=\&quot;Subflow: &quot;</span>;</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;        <span class="keywordflow">if</span>(node-&gt;_name.empty()) os &lt;&lt; <span