Add proxied functions for Promise.

Although there is nothing defined in `Promise` itself, the only instances of `Promise` are created by the `lazy` function, with magic methods defined on it. https://github.com/django/django/blob/3.2.6/django/utils/functional.py#L84-L191. Signed-off-by: Zixuan James Li <[email protected]>
typeddjango · Aug 2, 2022 · 7dd623b · 7dd623b
1 parent f3d5cd1
commit 7dd623b
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/django-stubs/utils/functional.pyi b/django-stubs/utils/functional.pyi
@@ -20,7 +20,16 @@ class cached_property(Generic[_T]):
     @overload
     def __get__(self, instance: object, cls: Type[Any] = ...) -> _T: ...
 
-class Promise: ...
+# Promise is only subclassed by a proxy class defined in the lazy function
+# so it makes sense for it to have all the methods available in that proxy class
+class Promise:
+    def __init__(self, args: Any, kw: Any) -> None: ...
+    def __reduce__(self) -> Tuple[Any, Tuple[Any]]: ...
+    def __lt__(self, other: Any) -> bool: ...
+    def __mod__(self, rhs: Any) -> str: ...
+    def __add__(self, other: Any) -> str: ...
+    def __radd__(self, other: Any) -> str: ...
+    def __deepcopy__(self, memo: Any): ...
 
 _C = TypeVar("_C", bound=Callable)