Baseline observer module, ensuring that (min,max) range includes zero. (#24297)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24297
ghstack-source-id: 88252409
Differential Revision: D16635637
fbshipit-source-id: fcef20b9c88b2c3bd97e311514e5b2d0339ff28a
