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d17b78bc - Add current stream source (#165211)

Add current stream source (#165211) Summary: X-link: https://github.com/pytorch/pytorch/pull/165211 Approved by: https://github.com/anijain2305 ghstack dependencies: #164819 Reviewed By: donigian Differential Revision: D86056504 fbshipit-source-id: 84112edf57013357bb7f5fbec39f99b54678b278