diff --git a/stdlib/unittest/mock.pyi b/stdlib/unittest/mock.pyi
index 381011352..9b37ab7b6 100644
--- a/stdlib/unittest/mock.pyi
+++ b/stdlib/unittest/mock.pyi
@@ -1,5 +1,5 @@
 import sys
-from typing import Any, Callable, Generic, Iterable, List, Mapping, Sequence, Tuple, Type, TypeVar, overload
+from typing import Any, Awaitable, Callable, Generic, Iterable, List, Mapping, Sequence, Tuple, Type, TypeVar, overload
 
 _T = TypeVar("_T")
 _TT = TypeVar("_TT", bound=Type[Any])
@@ -53,8 +53,6 @@ class _Call(Tuple[Any, ...]):
     __ne__: Any
     def __call__(self, *args: Any, **kwargs: Any) -> _Call: ...
     def __getattr__(self, attr: Any) -> Any: ...
-    def count(self, *args: Any, **kwargs: Any) -> Any: ...
-    def index(self, *args: Any, **kwargs: Any) -> Any: ...
     def call_list(self) -> Any: ...
 
 call: _Call
@@ -181,6 +179,8 @@ class _patch(Generic[_T]):
     def __call__(self, func: Callable[..., _R]) -> Callable[..., _R]: ...
     def decorate_class(self, klass: _TT) -> _TT: ...
     def decorate_callable(self, func: Callable[..., _R]) -> Callable[..., _R]: ...
+    if sys.version_info >= (3, 8):
+        def decorate_async_callable(self, func: Callable[..., Awaitable[_R]]) -> Callable[..., Awaitable[_R]]: ...
     def get_original(self) -> tuple[Any, bool]: ...
     target: Any
     temp_original: Any