TwoStepTrainOutput(TwoStepTrainOutput)

{
    "x": [
        [
            1,
            2,
            3,
            4,
            5,
            6,
            7,
            8,
            9
        ],
        [
            2,
            3,
            4,
            5,
            6,
            7,
            8,
            9,
            10
        ]
    ],
    "params": [
        2.1,
        3.1
    ],
    "resid": [
        3.1,
        6.1
    ],
    "fittedvalues": [
        10.4,
        20.1
    ],
    "weights": [
        10.4,
        20.1
    ]
}