Function ois_fwd 

fn ois_fwd(
    name: &str,
    index_code: &str,
    calendar_center: &str,
    fixed_day_count: DayCountFraction,
    fixed_frequency: Frequency,
    business_day_convention: BusinessDayConvention,
    roll: RollConvention,
    spot_lag_days: i32,
    payment_lag_days: i32,
    end_of_month: bool,
) -> OisTemplate

Forward-generating OIS variant (e.g. onshore CNY). Identical to ois but generates the schedule forward from the effective date.