func (kl *Kubelet) updatePodCIDR(ctx context.Context, cidr string) (bool, error) {
	kl.updatePodCIDRMux.Lock()
	defer kl.updatePodCIDRMux.Unlock()

	podCIDR := kl.runtimeState.podCIDR()

	if podCIDR == cidr {
		return false, nil
	}

	// kubelet -> generic runtime -> runtime shim -> network plugin
	// docker/non-cri implementations have a passthrough UpdatePodCIDR

}

// WithPodCIDR sets the PodCIDR field in the declarative configuration to the given value
// and returns the receiver, so that objects can be built by chaining "With" function invocations.
// If called multiple times, the PodCIDR field is set to the value of the last call.
func (b *NodeSpecApplyConfiguration) WithPodCIDR(value string) *NodeSpecApplyConfiguration {
	b.PodCIDR = &value
	return b
}

	}
}

var nodeWithoutCIDRRange = &v1.Node{
	ObjectMeta: metav1.ObjectMeta{Name: "node1"},
}

var nodeWithCIDRRange = &v1.Node{
	ObjectMeta: metav1.ObjectMeta{Name: "node1"},
	Spec:       v1.NodeSpec{PodCIDR: "10.1.1.0/24"},
}

func TestNodeSyncUpdate(t *testing.T) {
	t.Parallel()

	for _, tc := range []struct {
		desc string
		mode NodeSyncMode
		node *v1.Node
		fake fakeAPIs

    configMap:
      kubeletConfigKey: kubeletConfigKeyValue
      name: nameValue
      namespace: namespaceValue
      resourceVersion: resourceVersionValue
      uid: uidValue
  externalID: externalIDValue
  podCIDR: podCIDRValue
  podCIDRs:
  - podCIDRsValue
  providerID: providerIDValue
  taints:
  - effect: effectValue
    key: keyValue
    timeAdded: "2004-01-01T01:01:01Z"
    value: valueValue
  unschedulable: true

        "time": "2004-01-01T01:01:01Z",
        "fieldsType": "fieldsTypeValue",
        "fieldsV1": {},
        "subresource": "subresourceValue"
      }
    ]
  },
  "spec": {
    "podCIDR": "podCIDRValue",
    "podCIDRs": [
      "podCIDRsValue"
    ],
    "providerID": "providerIDValue",
    "unschedulable": true,
    "taints": [
      {
        "key": "keyValue",

        "time": "2004-01-01T01:01:01Z",
        "fieldsType": "fieldsTypeValue",
        "fieldsV1": {},
        "subresource": "subresourceValue"
      }
    ]
  },
  "spec": {
    "podCIDR": "podCIDRValue",
    "podCIDRs": [
      "podCIDRsValue"
    ],
    "providerID": "providerIDValue",
    "unschedulable": true,
    "taints": [
      {
        "key": "keyValue",

        "time": "2004-01-01T01:01:01Z",
        "fieldsType": "fieldsTypeValue",
        "fieldsV1": {},
        "subresource": "subresourceValue"
      }
    ]
  },
  "spec": {
    "podCIDR": "podCIDRValue",
    "podCIDRs": [
      "podCIDRsValue"
    ],
    "providerID": "providerIDValue",
    "unschedulable": true,
    "taints": [
      {
        "key": "keyValue",

    configMap:
      kubeletConfigKey: kubeletConfigKeyValue
      name: nameValue
      namespace: namespaceValue
      resourceVersion: resourceVersionValue
      uid: uidValue
  externalID: externalIDValue
  podCIDR: podCIDRValue
  podCIDRs:
  - podCIDRsValue
  providerID: providerIDValue
  taints:
  - effect: effectValue
    key: keyValue
    timeAdded: "2004-01-01T01:01:01Z"
    value: valueValue
  unschedulable: true

    configMap:
      kubeletConfigKey: kubeletConfigKeyValue
      name: nameValue
      namespace: namespaceValue
      resourceVersion: resourceVersionValue
      uid: uidValue
  externalID: externalIDValue
  podCIDR: podCIDRValue
  podCIDRs:
  - podCIDRsValue
  providerID: providerIDValue
  taints:
  - effect: effectValue
    key: keyValue
    timeAdded: "2004-01-01T01:01:01Z"
    value: valueValue
  unschedulable: true

	"sync"

	v1 "k8s.io/api/core/v1"
	"k8s.io/klog/v2"
	"k8s.io/kubernetes/pkg/proxy/config"
	"k8s.io/kubernetes/pkg/proxy/healthcheck"
)

// NodePodCIDRHandler handles the life cycle of kube-proxy based on the node PodCIDR assigned
// Implements the config.NodeHandler interface
// https://issues.k8s.io/111321
type NodePodCIDRHandler struct {
	mu       sync.Mutex
	podCIDRs []string
	logger   klog.Logger
}