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6b1abba1 - Add controlnet and vae from single file (#4084)

Add controlnet and vae from single file (#4084) * Add controlnet from single file * Updates * make style * finish * Apply suggestions from code review Co-authored-by: Sayak Paul <spsayakpaul@gmail.com> --------- Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>