{
    "items": [
        {
            "text": "min, max, mean, median, and spread",
            "kind": "statistic",
            "columns": [
                "petal_length",
                "petal_width",
                "sepal_length",
                "sepal_width"
            ],
            "statistics": [
                "min",
                "max",
                "avg",
                "median",
                "stddev"
            ],
            "group_column": null,
            "group_values": []
        }
    ]
}