/// <summary>
 /// The users board changed on the server.  This notifies the user that their board changed.
 /// </summary>
 /// <param name="boardId">The board identifier.</param>
 private void UserBoardSetToDefault(Guid boardId, bool clearStrokes)
 {
     BoardChangedEvent?.Invoke(boardId);
     BoardOwnerChangedEvent?.Invoke(true);
     if (clearStrokes)
     {
         StrokeClearEvent?.Invoke();
     }
 }
 /// <summary>
 /// Checks and lets the hub know when strokes cleared event is received.
 /// </summary>
 private void StrokesClearedReceived()
 {
     StrokeClearEvent?.Invoke();
 }