code: public ReferenceStream getReferenceStream()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          {
              SibTr.entry(tc, "getReferenceStream");
              SibTr.exit(tc, "getReferenceStream", subscriptionItemStream);
          }
          return subscriptionItemStream;
      }
docs: Returns the subscription.
  
  @return ReferenceStream