def METHOD_NAME(self):
    marketo_set_subscription_url = "".join(
        [
            "https://066-eov-335.mktorest.com/",
            "rest/v1/leads.json?",
            "access_token=test",
        ]
    )
    responses.add(
        responses.POST,
        marketo_set_subscription_url,
        json={},
        status=200,
    )
    marketo = marketo_api.Marketo()
    marketo.token = "test"
    response = marketo.set_newsletter_subscription("test", True)
    self.assertEqual(response, {})