def METHOD_NAME():
    headers = make_headers(content_type="text/csv")
    data = "1.0,2.0,5.0"
    responses = []
    for MODEL_NAME in MODEL_NAMES:
        response = requests.post(
            INVOCATION_URL.format(MODEL_NAME), data=data, headers=headers
        ).json()
        responses.append(response)
    assert responses[0] == {"predictions": [3.5, 4.0, 5.5]}
    error = responses[1]["error"]
    assert "document root must not be followed by other values" in error