if out.NodeName != nil && node == *out.NodeName {
				delete(out.DeprecatedTopology, corev1.LabelHostname)
			}
		}

		// If zone & hostname were the only field in the map or topology was empty
		// set DeprecatedTopology to nil
		if len(out.DeprecatedTopology) == 0 {
			out.DeprecatedTopology = nil
		}
	}

	return nil
}

				Endpoints: []discovery.Endpoint{
					{DeprecatedTopology: map[string]string{"key": "value"}},
					{DeprecatedTopology: map[string]string{"key": "value"}},
				},
			},
			expectedEPS: &discovery.EndpointSlice{
				Endpoints: []discovery.Endpoint{
					{DeprecatedTopology: map[string]string{"key": "value"}},
					{DeprecatedTopology: map[string]string{"key": "value"}},
				},
			},
		},
		{

		for i := range newEPS.Endpoints {
			if dropHints {
				newEPS.Endpoints[i].Hints = nil
			}
		}
	}
}

// dropTopologyOnV1 on V1 request wipes the DeprecatedTopology field  and copies
// the NodeName value into DeprecatedTopology
func dropTopologyOnV1(ctx context.Context, oldEPS, newEPS *discovery.EndpointSlice) {
	if info, ok := genericapirequest.RequestInfoFrom(ctx); ok {

			},
			internal: discovery.Endpoint{
				DeprecatedTopology: map[string]string{
					"key1": "val1",
				},
			},
		},
		{
			desc: "non empty topology map, with zone",
			external: v1beta1.Endpoint{
				Topology: map[string]string{
					"key1":                   "val1",
					corev1.LabelTopologyZone: "zone1",
				},
			},
			internal: discovery.Endpoint{
				DeprecatedTopology: map[string]string{
					"key1": "val1",

			}
		}

		topologyPath := idxPath.Child("deprecatedTopology")
		if len(endpoint.DeprecatedTopology) > maxTopologyLabels {
			allErrs = append(allErrs, field.TooMany(topologyPath, len(endpoint.DeprecatedTopology), maxTopologyLabels))
		}
		allErrs = append(allErrs, metavalidation.ValidateLabels(endpoint.DeprecatedTopology, topologyPath)...)
		if _, found := endpoint.DeprecatedTopology[corev1.LabelTopologyZone]; found {

        "name": "nameValue",
        "uid": "uidValue",
        "apiVersion": "apiVersionValue",
        "resourceVersion": "resourceVersionValue",
        "fieldPath": "fieldPathValue"
      },
      "deprecatedTopology": {
        "deprecatedTopologyKey": "deprecatedTopologyValue"
      },
      "nodeName": "nodeNameValue",
      "zone": "zoneValue",
      "hints": {
        "forZones": [
          {

        "name": "nameValue",
        "uid": "uidValue",
        "apiVersion": "apiVersionValue",
        "resourceVersion": "resourceVersionValue",
        "fieldPath": "fieldPathValue"
      },
      "deprecatedTopology": {
        "deprecatedTopologyKey": "deprecatedTopologyValue"
      },
      "nodeName": "nodeNameValue",
      "zone": "zoneValue",
      "hints": {
        "forZones": [
          {

		return err
	}
	out.Hostname = (*string)(unsafe.Pointer(in.Hostname))
	out.TargetRef = (*core.ObjectReference)(unsafe.Pointer(in.TargetRef))
	out.DeprecatedTopology = *(*map[string]string)(unsafe.Pointer(&in.DeprecatedTopology))
	out.NodeName = (*string)(unsafe.Pointer(in.NodeName))
	out.Zone = (*string)(unsafe.Pointer(in.Zone))
	out.Hints = (*discovery.EndpointHints)(unsafe.Pointer(in.Hints))
	return nil
}

addressType: addressTypeValue
apiVersion: discovery.k8s.io/v1
endpoints:
- addresses:
  - addressesValue
  conditions:
    ready: true
    serving: true
    terminating: true
  deprecatedTopology:
    deprecatedTopologyKey: deprecatedTopologyValue
  hints:
    forZones:
    - name: nameValue
  hostname: hostnameValue
  nodeName: nodeNameValue
  targetRef:
    apiVersion: apiVersionValue
    fieldPath: fieldPathValue

		*out = new(string)
		**out = **in
	}
	if in.TargetRef != nil {
		in, out := &in.TargetRef, &out.TargetRef
		*out = new(core.ObjectReference)
		**out = **in
	}
	if in.DeprecatedTopology != nil {
		in, out := &in.DeprecatedTopology, &out.DeprecatedTopology
		*out = make(map[string]string, len(*in))
		for key, val := range *in {
			(*out)[key] = val
		}
	}
	if in.NodeName != nil {
		in, out := &in.NodeName, &out.NodeName