presto-main/src/main/java/io/prestosql/operator/aggregation/arrayagg/LegacyArrayAggregationGroupState.java/LegacyArrayAggregationGroupState/getEstimatedSize
class LegacyArrayAggregationGroupState:    @Override
    public long getEstimatedSize()
    {
        return INSTANCE_SIZE + size + blockBuilders.sizeOf();
    }