[torch.package] is_from_package check (#56729)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/56729
Test Plan: Imported from OSS
Reviewed By: suo
Differential Revision: D27949829
Pulled By: Lilyjjo
fbshipit-source-id: 1159d66d51b8f187c43847a5d449b13683c39eeb
