Is your feature request related to a problem? Please describe.
The first controlnet for Sana has appeared, so the feature is to add the sana controlnet to the diffusers pipeline https://github.com/NVlabs/Sana/blob/main/asset/docs/sana_controlnet.md

Describe the solution you'd like.
Be able to use the sana controlnet

Describe alternatives you've considered.
Using the sana repo