pytorch

939c4ae6 - [DataPipe] Add `copy` option to `fork` DataPipe (#96030)

[DataPipe] Add `copy` option to `fork` DataPipe (#96030) Fixes pytorch/data#1061 and fixes pytorch/data#1032 Pull Request resolved: https://github.com/pytorch/pytorch/pull/96030 Approved by: https://github.com/ejguan, https://github.com/NivekT