async fn apply_canonical_alias_pdu(
services: &Services,
room_alias_id: &RoomAliasId,
sender_user: &UserId,
room_id: &RoomId,
state_lock: &RoomMutexGuard,
) -> Resultasync fn apply_canonical_alias_pdu(
services: &Services,
room_alias_id: &RoomAliasId,
sender_user: &UserId,
room_id: &RoomId,
state_lock: &RoomMutexGuard,
) -> Result