code: public void setRoutes(java.util.Collection<RouteRef> routes) {
          if (routes == null) {
              this.routes = null;
              return;
          }
  
          this.routes = new java.util.ArrayList<RouteRef>(routes);
      }
docs: <p>
  The list of existing routes for the specified service mesh and virtual router.
  </p>
  
  @param routes
  The list of existing routes for the specified service mesh and virtual router.