GitLab

* flax gpt2

* combine masks

* handle shared embeds

* add causal LM sample

* style

* add tests

* style

* fix imports, docs, quality

* don't use cache

* add cache

* add cache 1st version

* make use cache work

* start adding test for generation

* finish generation loop compilation

* rewrite test

* finish

* update

* update

* apply sylvains suggestions

* update

* refactor

* fix typo
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>