Annotate NoneType as Optional[type] (#60383)
Summary:
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Infer NoneType as Optional[torch.Tensor] for monkeytype type inference
Pull Request resolved: https://github.com/pytorch/pytorch/pull/60383
Test Plan:
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python test/test_jit.py -k TestPDT.test_nonetype_as_optional_of_type
Reviewed By: gmagogsfm
Differential Revision: D29341513
Pulled By: nikithamalgifb
fbshipit-source-id: 9a96670cb5cf2560cd4e19962faef5fecea8b24a
