message: with output type
diff: @@ -17,7 +17,7 @@ interface Room {
  roomId: string;
  }
  -export async function shieldStatusForMembership(client: Client, room: Room) {
  +export async function shieldStatusForMembership(client: Client, room: Room): Promise<string> {
  const members = (await room.getEncryptionTargetMembers()).map(({userId}) => userId);
  const inDMMap = !!DMRoomMap.shared().getUserIdForRoomId(room.roomId);
  