import type { DateLib } from "../classes/index.js";
/**
 * Returns the start date of the week in the broadcast calendar.
 *
 * The broadcast week starts on Monday. If the first day of the month is not a
 * Monday, this function calculates the previous Monday as the start of the
 * broadcast week.
 *
 * @since 9.4.0
 * @param date The date for which to calculate the start of the broadcast week.
 * @param dateLib The date library to use for date manipulation.
 * @returns The start date of the broadcast week.
 */
export declare function startOfBroadcastWeek(date: Date, dateLib: DateLib): Date;