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See https://github.com/pytorch/pytorch/pull/129751#issue-2380881501. Most changes are auto-generated by linter. You can review these PRs via: ```bash git diff --ignore-all-space --ignore-blank-lines HEAD~1 ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/129771 Approved by: https://github.com/justinchuby, https://github.com/janeyx99
15 lines
378 B
Python
15 lines
378 B
Python
"""Miscellaneous utilities to aid with typing."""
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from typing import Optional, TypeVar
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# Helper to turn Optional[T] into T when we know None either isn't
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# possible or should trigger an exception.
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T = TypeVar("T")
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def not_none(obj: Optional[T]) -> T:
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if obj is None:
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raise TypeError("Invariant encountered: value was None when it should not be")
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return obj
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