// Create first index with alias
        client.admin().indices().prepareCreate(index1).addAlias(new Alias(aliasName)).execute().actionGet();

        // Create second index and add to same alias
        client.admin().indices().prepareCreate(index2).execute().actionGet();
        client.admin().indices().prepareAliases().addAlias(index2, aliasName).execute().actionGet();

    /**
     * Constructor for ESSourceReader.
     * @param client The OpenSearch client.
     * @param settings The SuggestSettings instance.
     * @param indexName The name of the index to read from.
     */
    public ESSourceReader(final Client client, final SuggestSettings settings, final String indexName) {
        this.client = client;
        this.settings = settings;
        this.indexName = indexName;

@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial001_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body.{request.param}")

    client = TestClient(mod.app)
    return client


def test_body_float(client: TestClient):
    response = client.post("/items/", json={"name": "Foo", "price": 50.5})

@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial001_py310", marks=needs_py310),
        pytest.param("tutorial001_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.additional_status_codes.{request.param}")

    client = TestClient(mod.app)
    return client


def test_update(client: TestClient):

    private final Client client;
    private final SuggestSettings settings;
    private final SuggestWriter suggestWriter;

    /**
     * Constructor.
     *
     * @param client The OpenSearch client
     * @param settings The suggest settings
     * @param suggestWriter The suggest writer for performing writes
     */

### Required, can be `None` { #required-can-be-none }

You can declare that a parameter can accept `None`, but that it's still required. This would force clients to send a value, even if the value is `None`.

To do that, you can declare that `None` is a valid type but simply do not declare a default value:

			c.client.Endpoints[0]: madmin.ItemOnline,
		}, nil
	}

	type Result struct {
		Endpoint  string
		ItemState madmin.ItemState
	}

	var wg sync.WaitGroup
	results := make([]Result, len(c.client.Endpoints))
	for i := range c.client.Endpoints {
		wg.Add(1)
		go func(i int) {
			defer wg.Done()

			client := kes.Client{
				Endpoints:  []string{c.client.Endpoints[i]},
				HTTPClient: c.client.HTTPClient,

    yield {"msg": "hello"}
    yield {"msg": "world"}


app.include_router(router, prefix="/api")


@pytest.fixture(name="client")
def client_fixture():
    with TestClient(app) as c:
        yield c


def test_async_generator_with_model(client: TestClient):
    response = client.get("/items/stream")
    assert response.status_code == 200
    assert response.headers["content-type"] == "text/event-stream; charset=utf-8"

@pytest.fixture(
    name="client",
    params=[
        "tutorial001_an_py310",
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(
        f"docs_src.authentication_error_status_code.{request.param}"
    )

    client = TestClient(mod.app)
    return client


def test_get_me(client: TestClient):

    /**
     * Constructor.
     * @param client OpenSearch client
     * @param settings Suggest settings
     */
    public AnalyzerConverter(final Client client, final SuggestSettings settings) {
        this.client = client;
        this.settings = settings;
        analyzerSettings = settings.analyzer();
    }

    @Override
    public void init() throws IOException {
        // nothing
    }

    @Override