Add type hints to some handlers (#8505)

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/notifier.py b/synapse/notifier.py

index 59415f6f88..13adeed01e 100644
--- a/synapse/notifier.py
+++ b/synapse/notifier.py
@@ -339,7 +339,7 @@ class Notifier:
         self,
         stream_key: str,
         new_token: Union[int, RoomStreamToken],
-        users: Collection[UserID] = [],
+        users: Collection[Union[str, UserID]] = [],
         rooms: Collection[str] = [],
     ):
         """ Used to inform listeners that something has happened event wise.