Function nig_call_64 

pub fn nig_call_64(
    s: i64,
    k: i64,
    r: i64,
    t: i64,
    alpha: i64,
    beta: i64,
    delta: i64,
) -> Result<i64, SolMathError>

NIG call API at 1e6 scale (q = 0, default $0.005 / $100 request).