def METHOD_NAME() -> None:
    @get(path="/")
    def handler(param: Annotated[str, Parameter(min_length=1)]) -> str:
        return param
    with create_test_client(handler) as client:
        response = client.get("/")
        assert response.status_code == HTTP_400_BAD_REQUEST
        response = client.get("/?param=a")
        assert response.status_code == HTTP_200_OK