// Full determines whether a full push is required or not. If false, an incremental update will be sent.
	// Incremental pushes:
	// * Do not recompute the push context
	// * Do not recompute proxy state (such as ServiceInstances)
	// * Are not reported in standard metrics such as push time
	// As a result, configuration updates should never be incremental. Generally, only EDS will set this, but
	// in the future SDS will as well.
	Full bool

type serviceInstancesStore struct {
	ip2instance map[string][]*model.ServiceInstance
	// service instances by hostname -> config
	instances map[instancesKey]map[configKeyWithParent][]*model.ServiceInstance
	// instances only for serviceentry
	instancesBySE map[types.NamespacedName]map[configKey][]*model.ServiceInstance
	// instancesByHostAndPort tells whether the host has instances.

	store := serviceInstancesStore{
		ip2instance:            map[string][]*model.ServiceInstance{},
		instances:              map[instancesKey]map[configKeyWithParent][]*model.ServiceInstance{},
		instancesBySE:          map[types.NamespacedName]map[configKey][]*model.ServiceInstance{},
		instancesByHostAndPort: sets.Set[hostPort]{},
	}
	instances := []*model.ServiceInstance{

			Labels:       lbls,
		}
	}

	cases := []struct {
		name     string
		instance *ServiceInstance
		valid    bool
	}{
		{
			name: "nil service",
			instance: &ServiceInstance{
				Endpoint: endpointWithLabels(labels.Instance{}),
			},
		},
		{
			name: "bad label",
			instance: &ServiceInstance{
				Service:  service1,
				Endpoint: endpointWithLabels(labels.Instance{"*": "-"}),
			},
		},

	instancesByPortNum  map[string][]*model.ServiceInstance
	instancesByPortName map[string][]*model.ServiceInstance

	// Used by GetProxyServiceInstance, used to configure inbound (list of services per IP)
	// We generally expect a single instance - conflicting services need to be reported.
	ip2instance                map[string][]*model.ServiceInstance
	WantGetProxyServiceTargets []model.ServiceTarget

		}
		inconsistents, errors := findInconsistencies(clusterServices)
		if len(inconsistents) > 0 {
			var serviceInstance *resource.Instance
			for _, r := range clusterServices {
				if r != nil {
					serviceInstance = r
					break
				}
			}
			message := msg.NewMultiClusterInconsistentService(serviceInstance, fullname.Name.String(),
				fullname.Namespace.String(), inconsistents, errors)

			c.Report(gvk.Service, message)

				for _, serviceInstance := range tt.out {
					serviceInstance.Endpoint.Locality = model.Locality{
						Label:     tt.wle.Locality,
						ClusterID: tt.clusterID,
					}
					serviceInstance.Endpoint.Network = network.ID(tt.wle.Network)
					serviceInstance.Endpoint.Labels = labelutil.AugmentLabels(serviceInstance.Endpoint.Labels, tt.clusterID, tt.wle.Locality, "", network.ID(tt.wle.Network))

func (s *Controller) convertWorkloadEntryToServiceInstances(wle *networking.WorkloadEntry, services []*model.Service,
	se *networking.ServiceEntry, configKey *configKey, clusterID cluster.ID,
) []*model.ServiceInstance {
	out := make([]*model.ServiceInstance, 0, len(services)*len(se.Ports))
	for _, service := range services {
		for _, port := range se.Ports {
			out = append(out, s.convertEndpoint(service, port, wle, configKey, clusterID))
		}
	}

     * @param serviceType The type to make this service visible as.
     * @param serviceInstance The service implementation.
     */
    <T> void add(Class<T> serviceType, T serviceInstance);

    /**

func MakeServiceInstance(service *model.Service, port *model.Port, version int, locality model.Locality) *model.ServiceInstance {
	if service.External() {
		return nil
	}

	// we make port 80 same as endpoint port, otherwise, it's distinct
	target := port.Port
	if target != 80 {
		target += 1000
	}

	return &model.ServiceInstance{
		Endpoint: &model.IstioEndpoint{
			Address:         MakeIP(service, version),