// pub struct OptionParameters {
// /// `S` - Initial price of the underlying.
// pub initial_price: f64,
// /// `K` - Strike price.
// pub strike_price: f64,
// /// `r` - Risk-free rate parameter.
// pub risk_free_rate: f64,
// /// `v` - Volatility parameter.
// pub volatility: f64,
// /// `q` - Dividend rate.
// pub dividend_rate: f64,
// /// `T` - Time to expiry/maturity.
// pub time_to_maturity: f64,
// }
// pub trait PathIndependentOption {
// fn price(&self) -> f64;
// }
/// Path-dependent option trait.