> - attribute</dd>
<dd><code>type</code> - entity subclass</dd>
<dt>Returns:</dt>
<dd>subgraph for the attribute</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/IllegalArgumentException.html" title="class or interface in java.lang" class="external-link">IllegalArgumentException</a></code> - if the attribute's target
         type is not a managed type entity</dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/ja