* In `check_cached_episodes_sufficient` check whether all the requested video files are downloaded * optimize loop over the video paths * revert example num_workers * Apply suggestion from @Copilot Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Signed-off-by: Michel Aractingi <michel.aractingi@huggingface.co> * set num_workers to zero in example * style nit * reintroduce copilot optim --------- Signed-off-by: Michel Aractingi <michel.aractingi@huggingface.co> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>