presto-spi/src/main/java/io/prestosql/spi/block/Int128ArrayBlock.java/Int128ArrayBlock/writePositionTo
class Int128ArrayBlock:    @Override
    public void writePositionTo(int position, BlockBuilder blockBuilder)
    {
        checkReadablePosition(position);
        blockBuilder.writeLong(values[(position + positionOffset) * 2]);
        blockBuilder.writeLong(values[((position + positionOffset) * 2) + 1]);
        blockBuilder.closeEntry();
    }