[channels] Make URLRouter.routes a Collection

stubs/channels/@tests/stubtest_allowlist.txt

@@ -7,10 +7,6 @@ channels.auth.UserLazyObject.MultipleObjectsReturned
 channels.auth.UserLazyObject.NotUpdated
 channels.auth.UserLazyObject@AnnotatedWith
 
-# "is not a function", because it's wrapped in database_sync_to_async,
-# which makes it a class instance.
-channels.consumer.SyncConsumer.dispatch
-
 # database_sync_to_async is implemented as a class instance but stubbed as a function
 # for better type inference when used as decorator/function
 channels.db.database_sync_to_async

stubs/channels/channels/routing.pyi

@@ -1,3 +1,4 @@
+from collections.abc import Collection
 from typing import Any, type_check_only
 
 from asgiref.typing import ASGIReceiveCallable, ASGISendCallable, Scope
@@ -19,9 +20,9 @@ class _ExtendedURLPattern(URLPattern):
     callback: _ASGIApplicationProtocol | URLRouter
 
 class URLRouter:
-    routes: list[_ExtendedURLPattern | URLRouter]
+    routes: Collection[_ExtendedURLPattern | URLRouter]
 
-    def __init__(self, routes: list[_ExtendedURLPattern | URLRouter]) -> None: ...
+    def __init__(self, routes: Collection[_ExtendedURLPattern | URLRouter]) -> None: ...
     async def __call__(self, scope: Scope, receive: ASGIReceiveCallable, send: ASGISendCallable) -> None: ...
 
 class ChannelNameRouter:

stubs/channels/channels/utils.pyi

@@ -1,11 +1,12 @@
-from collections.abc import Awaitable, Callable
+from collections.abc import Awaitable, Callable, Sequence
 from typing import Any, Protocol, TypeAlias, type_check_only
 
 from asgiref.typing import ASGIApplication, ASGIReceiveCallable
 
 def name_that_thing(thing: object) -> str: ...
 async def await_many_dispatch(
-    consumer_callables: list[Callable[[], Awaitable[ASGIReceiveCallable]]], dispatch: Callable[[dict[str, Any]], Awaitable[None]]
+    consumer_callables: Sequence[Callable[[], Awaitable[ASGIReceiveCallable]]],
+    dispatch: Callable[[dict[str, Any]], Awaitable[object]],
 ) -> None: ...
 
 # Defines a generic ASGI middleware protocol.

stubs/channels/channels/worker.pyi

@@ -1,13 +1,19 @@
+from collections.abc import Iterable
+
 from asgiref.server import StatelessServer
 from channels.layers import BaseChannelLayer
 from channels.utils import _ChannelApplication
 
 class Worker(StatelessServer):
-    channels: list[str]
+    channels: Iterable[str]
     channel_layer: BaseChannelLayer
 
     def __init__(
-        self, application: _ChannelApplication, channels: list[str], channel_layer: BaseChannelLayer, max_applications: int = 1000
+        self,
+        application: _ChannelApplication,
+        channels: Iterable[str],
+        channel_layer: BaseChannelLayer,
+        max_applications: int = 1000,
     ) -> None: ...
     async def handle(self) -> None: ...
     async def listener(self, channel: str) -> None: ...