pytorch

9d448099 - C++ API parity: Sigmoid

C++ API parity: Sigmoid Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/27488 Test Plan: Imported from OSS Differential Revision: D17835405 Pulled By: pbelevich fbshipit-source-id: 78e13047a2a1f2776c59e778db7ba120716e93d3