libyaml-snake-java 1.23-1 (amd64 binary) in ubuntu focal

 SnakeYAML is a YAML parser and emitter for the Java programming language.
 .
 SnakeYAML features
 .
  * a complete YAML 1.1 parser. In particular, SnakeYAML can parse all
    examples from the specification.
  * Unicode support including UTF-8/UTF-16 input/output.
  * high-level API for serializing and deserializing native Java objects.
  * support for all types from the YAML types repository.
  * relatively sensible error messages.