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As pointed out by @Birch-san: https://github.com/huggingface/diffusers/pull/2634#issuecomment-1496517210

* first refactor

* more text

* improve

* finish

* up

* up

* up

* up

* finish

* Apply suggestions from code review
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
Co-authored-by: YiYi Xu <yixu310@gmail.com>

* up

* Apply suggestions from code review
Co-authored-by: Pedro Cuenca <pedro@huggingface.co>

* finished

* Apply suggestions from code review
Co-authored-by: Pedro Cuenca <pedro@huggingface.co>

* finished

---------
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
Co-authored-by: YiYi Xu <yixu310@gmail.com>
Co-authored-by: Pedro Cuenca <pedro@huggingface.co>

* before running make style

* remove left overs from flake8

* finish

* make fix-copies

* final fix

* more fixes