def METHOD_NAME(self) -> None:
    for version in range(1, 4):
        payload = self.get_body(f"unsupported_v{version}")
        result = self.client_post(self.url, payload, content_type="application/json")
        self.assert_json_success(result)
        self.assert_in_response(
            "The 'incident.unsupported' event isn't currently supported by the PagerDuty webhook; ignoring",
            result,
        )