fn retrieve_room_reservation(
directory: &RoomDirectory,
issuer: &str,
key: &str,
config: &RoomConfig,
) -> Result<Option<Arc<Room>>, RoomManagerServeError>fn retrieve_room_reservation(
directory: &RoomDirectory,
issuer: &str,
key: &str,
config: &RoomConfig,
) -> Result<Option<Arc<Room>>, RoomManagerServeError>