def METHOD_NAME(self):
    """
    Only the expected fields are returned by the API.
    """
    response = self.client.get(self.banner_base_url)
    results = response.data["results"]
    self.assertEqual(len(results), 1)
    self.assertDictEqual(
        results[0],
        {
            "name": self.banner_enabled_ongoing.name,
            "date_start": "2019-12-30T00:00:00Z",
            "date_end": "2020-01-03T00:00:00Z",
            "title": "",
            "text": "",
            "action_label": "",
            "action_link": "",
            "priority": 5,
            "security_advisory": False,
        },
    )