presto-thrift-api/src/main/java/io/prestosql/plugin/thrift/api/datatypes/PrestoThriftHyperLogLog.java/PrestoThriftHyperLogLog/toBlock
class PrestoThriftHyperLogLog:    @Override
    public Block toBlock(Type desiredType)
    {
        checkArgument(HYPER_LOG_LOG.equals(desiredType), "type doesn't match: %s", desiredType);
        return sliceType.toBlock(desiredType);
    }