upd get_callable_str async

main.py

@@ -1,5 +1,4 @@
-from typing import Annotated, Callable, Any
-from typing_extensions import Doc
+from typing import Callable, Any
 from aiogram import Bot, Dispatcher
 from aiogram.client.default import DefaultBotProperties
 from aiogram.types import Message
@@ -18,37 +17,23 @@ from .model.descriptors import BotCommand
 from .router import Router
 
 
-class QBotApp(FastAPI):
+class QBotApp[UserType: UserBase](FastAPI):
     """
     Main class for the QBot application
     """
 
-    def __init__[UserType: UserBase](
+    def __init__(
         self,
-        user_class: (
-            Annotated[
-                type[UserType], Doc("User class that will be used in the application")
-            ]
-            | None
-        ) = None,
+        user_class: UserType = None,
         config: Config | None = None,
-        bot_start: (
-            Annotated[
-                Callable[
-                    [
-                        Annotated[
-                            Callable[[Message, Any], None],
-                            Doc("Default handler for the start command"),
-                        ],
-                        Message,
-                        Any,
-                    ],
-                    None,
-                ],
-                Doc("Handler for the start command"),
-            ]
-            | None
-        ) = None,
+        bot_start: Callable[
+            [
+                Callable[[Message, Any], tuple[UserType, bool]],
+                Message,
+                Any,
+            ],
+            None,
+        ] = None,
         lifespan: Lifespan[AppType] | None = None,
         *args,
         **kwargs,