         var onGoing: Request?
         var lastEstablished: Request?
     }
-    struct ChatNo {
+    struct ChatNumbers {
         var latest: Int
         var maxBeforeReconnect: Int
     }

    private var cachedUserNames = [String: String]()

    // Comment Management for Reconnection
    private var chatNo = ChatNo(latest: 0, maxBeforeReconnect: 0)

    // App-side Health Check
    private var lastTextSocketDates: LastTextSocketDates?

        // 2. Save chat numbers.
        switch connectContext {
        case .normal:
            chatNumbers.latest = 0
            chatNumbers.maxBeforeReconnect = 0
        case .reconnect:
            chatNumbers.maxBeforeReconnect = chatNumbers.latest
        }

        // 3. Cleanup current connection, if needed.
