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<pre>public class <span class="strong">BaseExpression</span>
extends <a href="../../../../../org/apache/solr/analytics/expression/Expression.html" title="class in org.apache.solr.analytics.expression">Expression</a></pre>
<div class="block"><code>BaseExpression</code> returns the value returned by the <a href="../../../../../org/apache/solr/analytics/statistics/StatsCollector.html" title=