CacheSerializableRunnable getCacheSerializableRunnableForDefineIndex(
      final String prRegionName, final ArrayList<String> indexName,
      final ArrayList<String> indexedExpression) {
    return getCacheSerializableRunnableForDefineIndex(prRegionName, indexName, indexedExpression,
        null);
  }
This function defines a appropriate index on a PR given the name and other parameters.
geode-core/src/distributedTest/java/org/apache/geode/cache/query/partitioned/PRQueryDUnitHelper.java