mark generated imports

Author: jan-elastic

x-pack/plugin/esql/compute/src/main/generated-src/org/elasticsearch/compute/aggregation/SampleBooleanAggregator.java

@@ -7,6 +7,7 @@
 
 package org.elasticsearch.compute.aggregation;
 
+// begin generated imports
 import org.apache.lucene.util.BytesRef;
 import org.elasticsearch.common.breaker.CircuitBreaker;
 import org.elasticsearch.common.util.BigArrays;
@@ -27,6 +28,7 @@ import org.elasticsearch.search.sort.SortOrder;
 
 import java.util.SplittableRandom;
 import java.util.random.RandomGenerator;
+// end generated imports
 
 /**
  * Sample N field values for $type$.