Fix typing

flanabot/models/message.py

@@ -3,7 +3,6 @@ from __future__ import annotations  # todo0 remove when it's by default
 __all__ = ['Message']
 
 from dataclasses import dataclass, field
-from typing import Iterable
 
 from flanautils import Media, OrderedSet
 from multibot.models import Message as MultiBotMessage, User
@@ -15,7 +14,7 @@ from flanabot.models.weather_chart import WeatherChart
 @dataclass(eq=False)
 class Message(MultiBotMessage):
     author: User = None
-    mentions: Iterable[User] = field(default_factory=list)
+    mentions: list[User] = field(default_factory=list)
     chat: Chat = None
     replied_message: Message = None
     weather_chart: WeatherChart = None