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<h4>references</h4>
<pre>public&nbsp;java.util.Set&lt;String&gt;&nbsp;references()</pre>
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<dd><code><a href="../../../../io/delta/standalone/expressions/Expression.html#references--">references</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../io/delta/standalone/expressions/Expression.html" title="interface in io.delta.standalone.expressions">Expression</a></code></dd>
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