TransfeeFreeDto

{
    "transfeeFreeId": 0,
    "transportId": 0,
    "freeType": 0,
    "amount": 0,
    "piece": 0,
    "freeCityList": [
        {
            "areaId": 0,
            "areaName": "string",
            "areaNamePinyin": "string",
            "firstLetter": "s",
            "parentId": 0,
            "level": 0,
            "areas": [
                {}
            ],
            "maxGrade": 0,
            "minGrade": 0
        }
    ]
}