{
    "apis": [],
    "fields": [
        {
            "name": "ad_object_level",
            "type": "string"
        },
        {
            "name": "confidences",
            "type": "map<string, float>"
        },
        {
            "name": "winner_ad_object_id",
            "type": "string"
        }
    ]
}