pytorch

223f46f5 - Fix flake8 warning (#30905)

Fix flake8 warning (#30905) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/30905 - ghstack-source-id: 95117983 Test Plan: - Differential Revision: D18861981 fbshipit-source-id: b794a7fbe05af29471286c7f665cf3f86541eb5a