ode> element.  If multiple subgraphs are
 specified due to inheritance, they are referenced by this name.</div>
<dl class="notes">
<dt>Default:</dt>
<dd>""</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="keySubgraph()">
<h3>keySubgraph</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-nam