{
    "private_param":
    {
        "min_d1": 0.01 ,
        "max_d1": 0.01 ,
        "slider_d1": 0.135,
        "min_d2": 0.01 ,
        "max_d2": 0.01 ,
        "slider_d2": 0.116,
        "min_d3": 0.01 ,
        "max_d3": 0.01 ,
        "slider_d3": 0.09
    },
    "public_param": 
    {
        "length1" :0.5,
        "length2" :0.2,
        "length3" :0.2
    }
}