pytorch

331c0c18 - [DataLoader] Close open in DataPipe streams on best effort basis (#78952)

[DataLoader] Close open in DataPipe streams on best effort basis (#78952) Adding ability to: - Track open StreamWrappers with `StreamWrapper.session_streams` - Automatically close parent StreamWrapper (ex. torchdata tar is the parent and extracted file streams are children) - Close streams in discarded by filtering structures Differential Revision: [D37489935](https://our.internmc.facebook.com/intern/diff/D37489935) Pull Request resolved: https://github.com/pytorch/pytorch/pull/78952 Approved by: https://github.com/ejguan