Mark mock as completed (#8919)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

stubs/mock/METADATA.toml

@@ -1 +1,4 @@
 version = "4.0.*"
+
+[tool.stubtest]
+ignore_missing_stub = false

stubs/mock/mock/backports.pyi

@@ -0,0 +1,11 @@
+import sys
+
+if sys.version_info >= (3, 8):
+    from asyncio import iscoroutinefunction as iscoroutinefunction
+    from unittest import IsolatedAsyncioTestCase as IsolatedAsyncioTestCase
+else:
+    import unittest
+
+    class IsolatedAsyncioTestCase(unittest.TestCase): ...
+    # It is a typeguard, but its signature is to complex to duplicate.
+    def iscoroutinefunction(obj: object) -> bool: ...

stubs/mock/mock/mock.pyi

@@ -1,10 +1,12 @@
 from _typeshed import Self
-from collections.abc import Callable, Mapping, Sequence
+from collections.abc import Awaitable, Callable, Mapping, Sequence
+from contextlib import AbstractContextManager
 from types import TracebackType
 from typing import Any, Generic, TypeVar, overload
 from typing_extensions import Literal
 
 _F = TypeVar("_F", bound=Callable[..., Any])
+_AF = TypeVar("_AF", bound=Callable[..., Awaitable[Any]])
 _T = TypeVar("_T")
 _TT = TypeVar("_TT", bound=type[Any])
 _R = TypeVar("_R")
@@ -159,6 +161,10 @@ class _patch(Generic[_T]):
     def __call__(self, func: Callable[..., _R]) -> Callable[..., _R]: ...
     def decorate_class(self, klass: _TT) -> _TT: ...
     def decorate_callable(self, func: _F) -> _F: ...
+    def decorate_async_callable(self, func: _AF) -> _AF: ...
+    def decoration_helper(
+        self, patched: Any, args: tuple[Any, ...], keywargs: dict[str, Any]
+    ) -> AbstractContextManager[tuple[tuple[Any, ...], dict[str, Any]]]: ...
     def get_original(self) -> tuple[Any, bool]: ...
     target: Any
     temp_original: Any