def METHOD_NAME(self):
    new_tag = "a=b"
    description = f"Change: tags [] → ['{new_tag}']"
    response = self.user1_rest_client.patch(
        path=f"/api/v2/incidents/{self.incident.pk}/",
        data={
            "tags": [{"tag": new_tag}],
        },
    )
    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)