code: public JsMainImpl getMainImpl() {
  
          String thisMethodName = "getMainImpl";
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              SibTr.entry(tc, thisMethodName, this);
              SibTr.exit(tc, thisMethodName, _mainImpl);
          }
  
          return _mainImpl;
      }
docs: Returns a reference to the repository service. This is used in conjunction
  with ConfigRoot to access EMF configuration documents.
  
  @return Reference to the repository service.