Function meeting_rung 

pub fn meeting_rung(
    code: &str,
    template: &AnyTemplate,
    valuation: NaiveDate,
    locator: MeetingLocator,
    rate: f64,
    notional: f64,
    schedule: Option<&MeetingSchedule>,
) -> Result<Rung, RungBuildError>

The par rung of a meeting-dated swap: the swap locator resolves to at rate, noded at the window’s end — where its accrual ends, not where it pays: the knot is the decision — its pillar carrying the deciding meeting’s identity where the window starts on one, and labelled by bank and meeting date (FED 2026-12-09).

Errors

As meeting_overnight_swap.