if a sidecar is present in the workload.
                      type: string
                    weight:
                      description: The load balancing weight associated with the endpoint.
                      maximum: 4294967295
                      minimum: 0
                      type: integer
                  type: object

additionalProperties: type: integer description: Set of ports associated with the endpoint. type: object serviceAccount: description: The service account associated with the workload if a sidecar is present in the workload. type: string weight: description: The load balancing weight associated with the endpoint. type: integer type: object type: array exportTo: description: A list of namespaces to which this service is exported. items: type: string type: array hosts: description: The hosts associated with the...

// (i.e. it's a no-op). A null preferred scheduling term matches no objects (i.e. is also a no-op).
message PreferredSchedulingTerm {
  // Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100.
  optional int32 weight = 1;

  // A node selector term, associated with the corresponding weight.
  optional NodeSelectorTerm preference = 2;
}

)

// Values should try to use sendmail-style values as in <sysexits.h>
// See e.g. https://man.openbsd.org/sysexits.3
// or `less /usr/includes/sysexits.h` if you're on Linux
//
// Picking the right range is tricky--there are a lot of reserved ones (see
// https://www.tldp.org/LDP/abs/html/exitcodes.html#EXITCODESREF) and then some
// used by convention (see sysexits).
//

  // The CSI driver is responsible for parsing and validating the information passed in as VolumeContext.
  //
  // The following VolumeConext will be passed if podInfoOnMount is set to true.
  // This list might grow, but the prefix will be used.
  // "csi.storage.k8s.io/pod.name": pod.Name
  // "csi.storage.k8s.io/pod.namespace": pod.Namespace
  // "csi.storage.k8s.io/pod.uid": string(pod.UID)

metadata:
  name: valid-virtual-service
spec:
  hosts:
    - c
  http:
    - route:
      - destination:
          host: c
          subset: v1
        weight: 75
      - destination:
          host: c
          subset: v2
        weight: 25`
	validVirtualServiceJSON = `{
"apiVersion": "networking.istio.io/v1alpha3",
"kind": "VirtualService",
"metadata": {
	"name": "valid-virtual-service"
},

					}
					continue
				}
			}

			match = true
			if dest.Weight > 0 {
				fact := fmt.Sprintf("Route to host \"%s\"", dest.Destination.Host)
				if dest.Destination.Subset != "" {
					fact = fmt.Sprintf("%s subset \"%s\"", fact, dest.Destination.Subset)
				}
				fact = fmt.Sprintf("%s with weight %d%%", fact, dest.Weight)
				facts = append(facts, fact)
			}

	if err != nil {
		return err
	}
	installLog.Info("Installation succeed, start watching for re-installation.")

	for {
		// if sleepWatchInstall yields without error, that means the config might have been modified in some fashion.
		// so we rerun `install`, which will update the modified config if it has fallen out of sync with
		// our desired state
		err := in.sleepWatchInstall(ctx, installedBins)
		if err != nil {

  // e.g. `meta.k8s.io/v1.DeleteOptions` or `meta.k8s.io/v1.CreateOptions`. This may be
  // different than the options the caller provided. e.g. for a patch request the performed
  // Operation might be a CREATE, in which case the Options will a
  // `meta.k8s.io/v1.CreateOptions` even though the caller provided `meta.k8s.io/v1.PatchOptions`.
  // +optional
  optional k8s.io.apimachinery.pkg.runtime.RawExtension options = 12;

    ic["Istio kube.Client"]
    ikc["Istio kclient.Client"]
    ikrt["Istio krt.Collection"]
    ikrt--"Builds on"-->ikc--"Builds on"-->ic--"Builds on"-->kcg
```

**`kube.Client`** is a fairly light wrapper around Kubernetes clients, but offers quite a few benefits.
Istio consumes _many_ different types of clients (at the time of writing, 7), as well as informers for each of these.