better stubs

django-stubs/dispatch/dispatcher.pyi

@@ -1,14 +1,10 @@
-# Stubs for django.dispatch.dispatcher (Python 3.6)
-#
-# NOTE: This dynamically typed stub was automatically generated by stubgen.
-
-from typing import Any, Optional
-
-from django.db.models.base import Model
-from functools import partial
 from typing import Any, Callable, List, Optional, Tuple, Type, Union
 
-def _make_id(target: Any): ...
+from django.apps.config import AppConfig
+from django.conf import Settings, UserSettingsHolder
+from django.db.backends.sqlite3.base import DatabaseWrapper
+from django.db.models.base import Model
+from django.template.base import Template
 
 NONE_ID: Any
 NO_RECEIVERS: Any
@@ -19,32 +15,36 @@ class Signal:
     lock: Any = ...
     use_caching: Any = ...
     sender_receivers_cache: Any = ...
-    _dead_receivers: bool = ...
     def __init__(
         self, providing_args: List[str] = ..., use_caching: bool = ...
     ) -> None: ...
     def connect(
         self,
         receiver: Callable,
-        sender: Any = ...,
+        sender: Optional[Union[Type[Model], AppConfig]] = ...,
         weak: bool = ...,
         dispatch_uid: Optional[str] = ...,
     ) -> None: ...
     def disconnect(
         self,
         receiver: Optional[Callable] = ...,
-        sender: Any = ...,
+        sender: None = ...,
         dispatch_uid: Optional[str] = ...,
     ) -> bool: ...
-    def has_listeners(self, sender: object = ...) -> bool: ...
+    def has_listeners(self, sender: Type[Model] = ...) -> bool: ...
     def send(
-        self, sender: Type[Model], **named: Any
-    ) -> Union[List[Tuple[object, None]], List[Tuple[Callable, None]]]: ...
+        self,
+        sender: Optional[
+            Union[
+                Type[
+                    Union[Model, UserSettingsHolder, DatabaseWrapper, Settings]
+                ],
+                AppConfig,
+                Template,
+            ]
+        ],
+        **named: Any
+    ) -> List[Tuple[Callable, None]]: ...
     def send_robust(self, sender: Any, **named: Any): ...
-    def _clear_dead_receivers(self) -> None: ...
-    def _live_receivers(
-        self, sender: object
-    ) -> Union[List[partial], List[Callable], List[object]]: ...
-    def _remove_receiver(self, receiver: None = ...) -> None: ...
 
-def receiver(signal: Any, **kwargs: Any): ...
+def receiver(signal: Signal, **kwargs: Any) -> Callable: ...