[stdlib] Add missing Final (#14613)

stdlib/unittest/mock.pyi

@@ -52,7 +52,7 @@ else:
         "seal",
     )
 
-FILTER_DIR: Any
+FILTER_DIR: bool  # controls the way mock objects respond to `dir` function
 
 class _SentinelObject:
     name: Any
@@ -61,7 +61,7 @@ class _SentinelObject:
 class _Sentinel:
     def __getattr__(self, name: str) -> Any: ...
 
-sentinel: Any
+sentinel: _Sentinel
 DEFAULT: Any
 
 _ArgsKwargs: TypeAlias = tuple[tuple[Any, ...], Mapping[str, Any]]
@@ -428,7 +428,7 @@ class _ANY:
     def __ne__(self, other: object) -> Literal[False]: ...
     __hash__: ClassVar[None]  # type: ignore[assignment]
 
-ANY: Any
+ANY: _ANY
 
 if sys.version_info >= (3, 10):
     def create_autospec(

stdlib/unittest/util.pyi

@@ -5,12 +5,12 @@ from typing_extensions import TypeAlias
 _T = TypeVar("_T")
 _Mismatch: TypeAlias = tuple[_T, _T, int]
 
-_MAX_LENGTH: Final[int]
-_PLACEHOLDER_LEN: Final[int]
-_MIN_BEGIN_LEN: Final[int]
-_MIN_END_LEN: Final[int]
-_MIN_COMMON_LEN: Final[int]
-_MIN_DIFF_LEN: Final[int]
+_MAX_LENGTH: Final = 80
+_PLACEHOLDER_LEN: Final = 12
+_MIN_BEGIN_LEN: Final = 5
+_MIN_END_LEN: Final = 5
+_MIN_COMMON_LEN: Final = 5
+_MIN_DIFF_LEN: Final = 41
 
 def _shorten(s: str, prefixlen: int, suffixlen: int) -> str: ...
 def _common_shorten_repr(*args: str) -> tuple[str, ...]: ...