code: @Override
      public HashSet getQueuePointGuessSet()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "getQueuePointGuessSet", this);
  
          HashSet theQueuePoints = _localisationManager.getQueuePointGuessSet();
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "getQueuePointGuessSet", theQueuePoints);
  
          return theQueuePoints;
      }
docs: Returns the guess set for queue points.
  Unit tests only
  
  @return