connectionStatus property
      
      TUIConnectionStatus?
      get
      connectionStatus
      
    
    
    
Implementation
TUIConnectionStatus? get connectionStatus => _connectionStatus[this];
      
      set
      connectionStatus
      (TUIConnectionStatus? status) 
      
    
    
    
Implementation
set connectionStatus(TUIConnectionStatus? status) =>
    _connectionStatus[this] = status;