Fix progress bar compatibility with generators (#9693)
* Fix progress bar compatibility with generators
* add changeset
* Format helpers.py
* Fix
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Co-authored-by: Abubakar Abid <abubakar@huggingface.co>
Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>
Co-authored-by: Freddy Boulton <alfonsoboulton@gmail.com>
