transformers

786ced36 - Add versioning system to fast tokenizer files (#12713)

Add versioning system to fast tokenizer files (#12713) * Add versioning system to fast tokenizer files * Deal with offline mode * Use staging env in tests * Style * Apply suggestions from code review Co-authored-by: Lysandre Debut <lysandre@huggingface.co> * Style Co-authored-by: Lysandre Debut <lysandre@huggingface.co>