pytorch

1d5cc6c5 - Move requires_grad_/backward out of VariableTypeManual. (#54543)

Move requires_grad_/backward out of VariableTypeManual. (#54543) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/54543 Test Plan: Imported from OSS Reviewed By: eellison Differential Revision: D27321819 Pulled By: ailzhang fbshipit-source-id: 991c83e134d109e270c872b4b79026dcb732d77a