private async Task GetUsers()
 {
     Users = new ObservableCollection <User>(await rocketChatRest.GetUsersList());
     foreach (var user in Users)
     {
         ChangeUserStatusText(new UserConnectionStatusNotification {
             fields = new UserConnectionStatusFields {
                 userId = user.Id, status = user.UserPresence.Status, message = user.UserPresence.StatusText
             }
         });
     }
 }