pytorch

69e0bda9 - [BE] Import `Literal`, `Protocol`, and `Final` from standard library `typing` as of Python 3.8+ (#94490)

[BE] Import `Literal`, `Protocol`, and `Final` from standard library `typing` as of Python 3.8+ (#94490) Changes: 1. `typing_extensions -> typing-extentions` in dependency. Use dash rather than underline to fit the [PEP 503: Normalized Names](https://peps.python.org/pep-0503/#normalized-names) convention. ```python import re def normalize(name): return re.sub(r"[-_.]+", "-", name).lower() ``` 2. Import `Literal`, `Protocal`, and `Final` from standard library as of Python 3.8+ 3. Replace `Union[Literal[XXX], Literal[YYY]]` to `Literal[XXX, YYY]`. Pull Request resolved: https://github.com/pytorch/pytorch/pull/94490 Approved by: https://github.com/ezyang, https://github.com/albanD