docs: public PubSubRealization getPubSubRealization()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          {
              SibTr.entry(tc, "getPubSubRealization");
              SibTr.exit(tc, "getPubSubRealization", _pubSubRealization);
          }
          return _pubSubRealization;
      }