Function surface_select_standardized_moneyness_wing_strikes 

pub fn surface_select_standardized_moneyness_wing_strikes<S: SurfaceSmile + ?Sized>(
    smile: &S,
    market: &SurfaceMarketContext,
    sigma_multiple: f64,
    listed_strikes: &[f64],
) -> Result<SurfaceStandardizedMoneynessWingSelection, FerroRiskError>