model.GroupBuy

{
    "auto_group": 0,
    "await_time": 0,
    "course_id": "string",
    "created_at": 0,
    "end_time": 0,
    "exceed_group": 0,
    "goods_id": "string",
    "group_num": 0,
    "id": 0,
    "org_id": "string",
    "price": 0,
    "real_end_time": 0,
    "start_time": 0,
    "updated_at": 0,
    "user_id": "string"
}