presto-main/src/main/java/io/prestosql/operator/aggregation/ApproximateSetAggregation.java/ApproximateSetAggregation/newHyperLogLog
class ApproximateSetAggregation:    public static HyperLogLog newHyperLogLog()
    {
        return HyperLogLog.newInstance(NUMBER_OF_BUCKETS);
    }