filterConfig := MaybeBuildStatefulSessionFilterConfig(svc)
	if filterConfig == nil {
		return nil
	}

	return &hcm.HttpFilter{
		Name: StatefulSessionFilter,
		ConfigType: &hcm.HttpFilter_TypedConfig{
			TypedConfig: protoconv.MessageToAny(filterConfig),
		},
	}
}

func MaybeBuildStatefulSessionFilterConfig(svc *model.Service) *statefulsession.StatefulSession {

							Name: "test-cookie",
						},
					}),
				},
			},
		},
	}
	for _, tt := range cases {
		t.Run(tt.name, func(t *testing.T) {
			sessionConfig := MaybeBuildStatefulSessionFilterConfig(tt.service)
			if !reflect.DeepEqual(tt.expectedconfig, sessionConfig) {
				t.Errorf("unexpected stateful session filter config, expected: %v, got :%v", tt.expectedconfig, sessionConfig)
			}
		})
	}

			push.AddMetric(model.DuplicatedDomains, name, node.ID, msg)
		}
		if len(domains) > 0 {
			pervirtualHostFilters := map[string]*anypb.Any{}
			if statefulConfig := util.MaybeBuildStatefulSessionFilterConfig(svc); statefulConfig != nil {
				perRouteStatefulSession := &statefulsession.StatefulSessionPerRoute{
					Override: &statefulsession.StatefulSessionPerRoute_StatefulSession{
						StatefulSession: statefulConfig,

					perRouteFilters := map[string]*anypb.Any{}
					if gatewayService != nil {
						// Build StatefulSession Filter if gateway service has persistence session label.
						if statefulConfig := util.MaybeBuildStatefulSessionFilterConfig(gatewayService); statefulConfig != nil {
							perRouteStatefulSession := &statefulsession.StatefulSessionPerRoute{
								Override: &statefulsession.StatefulSessionPerRoute_StatefulSession{

	}
	var statefulConfig *statefulsession.StatefulSession
	for _, hostname := range hostnames {
		perSvcStatefulConfig := util.MaybeBuildStatefulSessionFilterConfig(serviceRegistry[hostname])
		// This means we have more than one stateful config for the same route because of weighed destinations.
		// We should just pick the first and give a warning.