[
    {
        "mode": "NULLABLE",
        "name": "name",
        "type": "STRING"
    },
    {
        "mode": "NULLABLE",
        "name": "surname",
        "type": "STRING"
    },
    {
        "mode": "NULLABLE",
        "name": "age",
        "type": "NUMERIC"
    },
    {
        "mode": "NULLABLE",
        "name": "_TIMESTAMP",
        "type": "TIMESTAMP"
    }
]