pytorch

73dd8c00 - Revert D18864774: polish up overloads on free functions

Revert D18864774: polish up overloads on free functions Test Plan: revert-hammer Differential Revision: D18864774 Original commit changeset: 6c566738bd6f fbshipit-source-id: 669192605a3bc1a6ba06bbb5cae54f61637a45ae