presto-main/src/main/java/io/prestosql/sql/rewrite/DescribeInputRewrite.java/DescribeInputRewrite/rewrite
class DescribeInputRewrite:    @Override
    public Statement rewrite(
            Session session,
            Metadata metadata,
            SqlParser parser,
            Optional<QueryExplainer> queryExplainer,
            Statement node,
            List<Expression> parameters,
            Map<NodeRef<Parameter>, Expression> parameterLookup,
            AccessControl accessControl,
            WarningCollector warningCollector)
    {
        return (Statement) new Visitor(session, parser, metadata, queryExplainer, parameters, parameterLookup, accessControl, warningCollector).process(node, null);
    }