Cache the huggingface model at install stage (#836)
Summary:
Make sure we download and cache the huggingface models at installation stage.
Fixes https://github.com/pytorch/benchmark/issues/820
Pull Request resolved: https://github.com/pytorch/benchmark/pull/836
Reviewed By: jansel
Differential Revision: D35253086
Pulled By: xuzhao9
fbshipit-source-id: 184c4abc3a1fd22dce60db4b24e4d6b6103b6d39
