[clang] [libclang/python] Add type annotations to the TranslationUnit class (PR #180876)

[Vlad Serebrennikov via cfe-commits]

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@@ -103,9 +103,14 @@
 
 if TYPE_CHECKING:
     from ctypes import _Pointer
+    from io import TextIOWrapper
     from typing_extensions import Protocol, TypeAlias
 
     StrPath: TypeAlias = TUnion[str, os.PathLike[str]]
+    # The type that is compatible with os.fspath:
+    # str, bytes, or os.PathLikes that return either of these two
+    StrBytesPath: TypeAlias = TUnion[str, bytes, os.PathLike[str], os.PathLike[bytes]]
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Endilll wrote:

It also seems that defining `StrBytesPath` in terms of `StrPath` would be beneficial here to avoid duplication.

https://github.com/llvm/llvm-project/pull/180876