typing

projects/jupyter-server-ydoc/jupyter_server_ydoc/handlers.py

@@ -8,7 +8,7 @@
 import time
 import uuid
 from logging import Logger
-from typing import Any
+from typing import Any, Literal
 from uuid import uuid4
 
 from jupyter_server.auth import authorized
@@ -384,15 +384,17 @@ async def _clean_room(self) -> None:
                 self._emit(LogLevel.INFO, "clean", "Loader deleted.")
             del self._room_locks[self._room_id]
 
-    def _on_global_awareness_event(self, topic: str, changes: tuple[dict[str, Any], Any]) -> None:
+    def _on_global_awareness_event(
+        self, topic: Literal["change", "update"], changes: tuple[dict[str, Any], Any]
+    ) -> None:
         """
         Update the users when the global awareness changes.
 
             Parameters:
                 topic (str): `"update"` or `"change"` (`"change"` is triggered only if the states are modified).
                 changes (tuple[dict[str, Any], Any]): The changes and the origin of the changes.
         """
-        if type != "change":
+        if topic != "change":
             return
         added_users = changes[0]["added"]
         removed_users = changes[0]["removed"]