//#region src/lib/week.d.ts
/**
 * Locale week data (first weekday, weekend) derived from CLDR via Intl.
 * Shared so the app shell and the date picker resolve week starts identically.
 */
/**
 * Read CLDR week info for a locale, tolerating the legacy `weekInfo` accessor
 * on engines that predate `getWeekInfo()`. Returns undefined when unavailable
 * so callers can apply their own fallback.
 */
export declare const getLocaleWeekInfo: (locale: string) => Intl.WeekInfo | undefined;
/**
 * First weekday as a day-of-week value (0 = Sunday … 6 = Saturday): Monday
 * across most of Europe, Sunday in the US, Saturday across much of the Gulf.
 * Falls back to Monday when the runtime lacks week info.
 */
export declare const getFirstWeekday: (locale: string) => number;
/**
 * Weekend weekdays as day-of-week values (0 = Sunday … 6 = Saturday):
 * Saturday/Sunday across the West, Friday/Saturday across much of the Gulf.
 * Falls back to Saturday/Sunday when the runtime lacks week info.
 */
export declare const getWeekendDays: (locale: string) => ReadonlySet<number>;
//#endregion