transformers

d7c8ce57 - Avoid accessing .dataset of a DataLoader in Trainer (#16451)

Avoid accessing .dataset of a DataLoader in Trainer (#16451) * Avoid accessing .dataset of a dataloader * style * fix * cleaning up, reverting some misunderstandings * black * add train_dataset argument to get_train_dataloader, and fix other instances of length checks * flake8 * address comments * fix bug * cleanup * add test * Update tests/trainer/test_trainer.py Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> * under torch * merge * stylistic suggestion Co-authored-by: Sander Land <sander@chatdesk.com> Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>