diff --git a/third_party/2and3/cachetools/func.pyi b/third_party/2and3/cachetools/func.pyi
index 5fcb68fda..e1e6ac160 100644
--- a/third_party/2and3/cachetools/func.pyi
+++ b/third_party/2and3/cachetools/func.pyi
@@ -1,8 +1,11 @@
-from typing import Callable, Optional, Sequence, TypeVar
+from typing import Any, Callable, Optional, Sequence, TypeVar
 
 _T = TypeVar("_T")
 
-def lfu_cache(maxsize: int = ..., typed: bool = ...) -> None: ...
-def lru_cache(maxsize: int = ..., typed: bool = ...) -> None: ...
-def rr_cache(maxsize: int = ..., choice: Optional[Callable[[Sequence[_T]], _T]] = ..., typed: bool = ...) -> None: ...
-def ttl_cache(maxsize: int = ..., ttl: int = ..., timer: float = ..., typed: bool = ...) -> None: ...
+_F = TypeVar("_F", bound=Callable[..., Any])
+_RET = Callable[[_F], _F]
+
+def lfu_cache(maxsize: int = ..., typed: bool = ...) -> _RET: ...
+def lru_cache(maxsize: int = ..., typed: bool = ...) -> _RET: ...
+def rr_cache(maxsize: int = ..., choice: Optional[Callable[[Sequence[_T]], _T]] = ..., typed: bool = ...) -> _RET: ...
+def ttl_cache(maxsize: int = ..., ttl: int = ..., timer: float = ..., typed: bool = ...) -> _RET: ...