def METHOD_NAME():
    headers = make_headers()
    x = ""
    responses = []
    for MODEL_NAME in MODEL_NAMES:
        response = requests.post(INVOCATION_URL.format(MODEL_NAME), data=x, headers=headers)
        responses.append(response)
        print(MODEL_NAME, response)
    assert 500 == responses[0].status_code
    assert "document is empty" in responses[0].text
    assert 500 == responses[1].status_code
    assert "unsupported content type application/json" in responses[1].text