ydb/yql/essentials/udfs/common/yson2/test/cases/Serialize.sql

/* syntax version 1 */
select
Yson::SerializeText(Yson::Parse(Yson('<a=1>[#;{a=1};{b=2u;c=[]};<q=foo>3.0;{};foo;"very loooooooooooooooooong string"]')));