transformers

760eae30 - [Trainer] Move optimizer cls init to trainer_optimizer.py (#43738)

[Trainer] Move optimizer cls init to trainer_optimizer.py (#43738) * update optimizer static method * fix * maybe this is a bit better ? * update tests * fix * fix * add api * update * let's remove for now * Apply repo consistency fixes --------- Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>