fixed type checking errors in options.py (#68056)
Summary:
Fixes [issue#64](https://github.com/MLH-Fellowship/pyre-check/issues/64)
This PR fixes the type checking errors in torch/distributed/rpc/options.py.
The variable types in 84:8 and 85:8 were declared to have type `List` but were sometimes assigned a value of `None`. This caused an incompatitble variable type error. Therefore, I changed the type from `List` to `Optional[List]` . Hence, this fixes the incompatitble variable type error.
Signed-off-by: Onyemowo Agbo
onionymous
0xedward
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68056
Reviewed By: zou3519
Differential Revision: D32282289
Pulled By: mrshenli
fbshipit-source-id: ee410165e623834b4f5f3da8d44bd5a29306daae
