code: func (pc *PCCloud) GetZoneByNodeName(ctx context.Context, nodeName k8stypes.NodeName) (cloudprovider.Zone, error) {
  	return cloudprovider.Zone{}, errors.New("GetZoneByNodeName not imeplemented")
  }
docs: // GetZoneByNodeName implements Zones.GetZoneByNodeName
  // This is particularly useful in external cloud providers where the kubelet
  // does not initialize node data.