def METHOD_NAME() -> None:
    @post(
        path="/test",
        tags=["search"],
        response_headers=[ResponseHeader(name="test-header", value="test value", description="test")],
    )
    def my_handler(data: Dict[str, str]) -> Dict[str, str]:
        return data
    with create_test_client(my_handler) as client:
        response = client.post("/test", json={"hello": "world"})
        assert response.status_code == HTTP_201_CREATED
        assert response.headers.get("test-header") == "test value"