def METHOD_NAME(self):
    data = {
        "level": 2,
    }
    description = "Change: level 1 → 2"
    response = self.user1_rest_client.patch(
        path=f"/api/v2/incidents/{self.incident.pk}/",
        data=data,
    )
    self.assertEqual(response.status_code, status.HTTP_200_OK)
    change_events = self.incident.events.filter(type=Event.Type.INCIDENT_CHANGE)
    change_events_descriptions = [event.description for event in change_events]
    self.assertTrue(change_events)
    self.assertIn(description, change_events_descriptions)
    self.assertEqual(change_events.get(description=description).actor, self.user1)