{
    "model": "eif",
    "d": [0.01, 0.3, 0.6],
    "vtb": 1.0,
    "mu": -0.1,
    "a_e": 0.1,
    "dt": 0.001,
    "vt": "eval_after_unroll(vtb + d * 100)",
    "rin_e": "eval_before_unroll(linspace(0.1, 10, 30))"
}