presto-spi/src/main/java/io/prestosql/spi/type/HyperLogLogType.java/HyperLogLogType/writeSlice
class HyperLogLogType:    @Override
    public void writeSlice(BlockBuilder blockBuilder, Slice value, int offset, int length)
    {
        blockBuilder.writeBytes(value, offset, length).closeEntry();
    }