pytorch

f85309e4 - [DataPipe] Adding serialization test at different stages of reading for IterDataPipes (#73119)

[DataPipe] Adding serialization test at different stages of reading for IterDataPipes (#73119) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/73119 Test if a DataPipe is serializable after its contents are partially read and completely read. This is especially important for DataPipes with buffers. Test Plan: Imported from OSS Reviewed By: ejguan Differential Revision: D34354496 Pulled By: NivekT fbshipit-source-id: 36971d68b9ca1de81fb254e9a459b8f54fe0f9ff (cherry picked from commit e8f39a7aa364bd2b19145788f7e67c06f948f81b)