E.g. `pip install httpx`.

Import `TestClient`.

Create a `TestClient` by passing your **FastAPI** application to it.

Create functions with a name that starts with `test_` (this is standard `pytest` conventions).

Use the `TestClient` object the same way as you do with `httpx`.

```console
 helm install -n istio-system istiod manifests/charts/istio-control/istio-discovery --set profile=openshift
```

4) `gateways` charts install a load balancer with `ingress` and `egress`.

Ingress secrets and access should be separated from the control plane.

```console
helm install -n istio-system istio-ingress manifests/charts/gateways/istio-ingress --set profile=openshift
```

#### Legacy Gateway Helm charts

Istio historically offered two different charts - `manifests/charts/gateways/istio-ingress` and `manifests/charts/gateways/istio-egress`.
These are replaced by this chart.
While not required, it is recommended all new users use this chart, and existing users migrate when possible.

# Lifespan Events

You can define logic (code) that should be executed before the application **starts up**. This means that this code will be executed **once**, **before** the application **starts receiving requests**.

The same way, you can define logic (code) that should be executed when the application is **shutting down**. In this case, this code will be executed **once**, **after** having handled possibly **many requests**.

  --set fullnameOverride=kiali \
  kiali-server \
  --repo https://kiali.org/helm-charts \
  -f "${WD}/values-kiali.yaml"
} > "${ADDONS}/kiali.yaml"

# Set up prometheus
helm3 template prometheus prometheus \
  --namespace istio-system \
  --version 25.19.1 \
  --repo https://prometheus-community.github.io/helm-charts \
  -f "${WD}/values-prometheus.yaml" \
  > "${ADDONS}/prometheus.yaml"

        ],
        *args: P.args,
        **kwargs: P.kwargs,
    ) -> None:
        """
        Add a function to be called in the background after the response is sent.

        Read more about it in the
        [FastAPI docs for Background Tasks](https://fastapi.tiangolo.com/tutorial/background-tasks/).
        """

        Artifact s;
        String[] parts = coord.split(":");
        switch (parts.length) {
            case 3:
                s = new DefaultArtifact(parts[0], parts[1], "*", "*", parts[2]);
                break;
            case 4:
                s = new DefaultArtifact(parts[0], parts[1], "*", parts[2], parts[3]);
                break;
            case 5:

	"istio.io/istio/operator/pkg/helm"
)

type profileListArgs struct {
	// manifestsPath is a path to a charts and profiles directory in the local filesystem with a release tgz.
	manifestsPath string
}

func addProfileListFlags(cmd *cobra.Command, args *profileListArgs) {
	cmd.PersistentFlags().StringVarP(&args.manifestsPath, "charts", "", "", ChartsDeprecatedStr)

            annotation=type_, default=default, alias=alias
        )
    else:
        field_info = field_info or FieldInfo()
    kwargs = {"name": name, "field_info": field_info}
    if PYDANTIC_V2:
        kwargs.update({"mode": mode})
    else:
        kwargs.update(
            {
                "type_": type_,
                "class_validators": class_validators,
                "default": default,

      return specialCases.get(constantName);
    }
    List<String> parts = Lists.newArrayList();
    for (String part : SPLITTER.split(constantName)) {
      if (!uppercaseAcronyms.contains(part)) {
        part = part.charAt(0) + Ascii.toLowerCase(part.substring(1));
      }
      parts.add(part);
    }
    return JOINER.join(parts);
  }