fastapi

634cf225 - 🐛 Fix `response_model` not invalidating `None` (#2725)

🐛 Fix `response_model` not invalidating `None` (#2725) Co-authored-by: Taneli Hukkinen <hukkinj1@users.noreply.github.com> Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>