return item1, item2  # pragma: nocover

    @app.post(
        "/tocallback",
        response_model=list[Item],
        responses={404: {"model": list[Message]}},
    )
    def post_with_callback(item1: Item, item2: Item):
        return item1, item2  # pragma: nocover

    client = TestClient(app)
    response = client.get("/openapi.json")
    assert response.json() == snapshot(
        {