Does this support polymorphism and customizing JSON fleld names?

- https://pub.dev/documentation/dart_mappable/latest/topics/Polymorphism-topic.html
- https://pub.dev/documentation/dart_mappable/latest/topics/Models-topic.html

BTW, how fast is the this in runtime like in destabilization etc. ?

- https://helight.medium.com/benchmarking-darts-json-serialization-and-dataclass-ecosystem-a49969861d08