"type": "string",
                            "format": "date-time",
                        },
                        "repeat_at": IsDict(
                            {
                                "title": "Repeat At",
                                "anyOf": [
                                    {"type": "string", "format": "time"},
                                    {"type": "null"},

                    "type": "type_error.dict",
                }
            ]
        }
    )
    response = client.post(
        "/items/", content=data, headers={"Content-Type": "application/not-really-json"}
    )
    assert response.status_code == 422, response.text
    assert response.json() == IsDict(
        {
            "detail": [
                {
                    "type": "model_attributes_type",