pytorch

515e3b85 - C++ API parity: Hardshrink

C++ API parity: Hardshrink Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/27035 Test Plan: Imported from OSS Differential Revision: D17682403 Pulled By: pbelevich fbshipit-source-id: 186377fe577abfdd53acc95751a7ed845b51af95