Add stubs for the extensions

src/dependency_injector/ext/aiohttp.pyi

@@ -0,0 +1,23 @@
+from typing import Awaitable as _Awaitable
+
+from dependency_injector import providers
+
+
+class Application(providers.Singleton): ...
+
+
+class Extension(providers.Singleton): ...
+
+
+class Middleware(providers.DelegatedCallable): ...
+
+
+class MiddlewareFactory(providers.Factory): ...
+
+
+class View(providers.Callable):
+    def as_view(self) -> _Awaitable: ...
+
+
+class ClassBasedView(providers.Factory):
+    def as_view(self) -> _Awaitable: ...

src/dependency_injector/ext/flask.pyi

@@ -0,0 +1,24 @@
+from typing import Union, Optional, Callable as _Callable, Any
+
+from flask import request as flask_request
+from dependency_injector import providers
+
+
+request: providers.Object[flask_request]
+
+
+class Application(providers.Singleton): ...
+
+
+class Extension(providers.Singleton): ...
+
+
+class View(providers.Callable):
+    def as_view(self) -> _Callable[..., Any]: ...
+
+
+class ClassBasedView(providers.Factory):
+    def as_view(self, name: str) -> _Callable[..., Any]: ...
+
+
+def as_view(provider: Union[View, ClassBasedView], name: Optional[str] = None) -> _Callable[..., Any]: ...