oldRes := &sigsk8siogatewayapiapisv1.GRPCRoute{
			ObjectMeta: origMeta,
			Spec:       *(orig.Spec.(*sigsk8siogatewayapiapisv1.GRPCRouteSpec)),
		}
		modRes := &sigsk8siogatewayapiapisv1.GRPCRoute{
			ObjectMeta: modMeta,
			Spec:       *(mod.Spec.(*sigsk8siogatewayapiapisv1.GRPCRouteSpec)),
		}
		patchBytes, err := genPatchBytes(oldRes, modRes, typ)
		if err != nil {
			return nil, err
		}

func buildGRPCVirtualServices(
	ctx configContext,
	obj config.Config,
	gatewayRoutes map[string]map[string]*config.Config,
	meshRoutes map[string]map[string]*config.Config,
) {
	route := obj.Spec.(*k8s.GRPCRouteSpec)
	parentRefs := extractParentReferenceInfo(ctx.GatewayReferences, route.ParentRefs, route.Hostnames, gvk.GRPCRoute, obj.Namespace)
	reportStatus := func(results []RouteParentResult) {