{
    "model": "eif",
    "vr": 0.0,
    "vt": "eval_after_unroll(vtb + d * 100)",
    "mu": -0.1,
    "a_e": 0.2,
    "rin_e": 2.4,
    "vtb": 1.0,
    "d": [0.2],
    "vhist_l": -1.0,
    "vhist_r": 3.0,
    "vhist_N": 200
}