/**
 * get the first day of the week containing given day
 *
 * @remarks This function assumes that the forst day of the week always is a monday
 *
 * @param date - Date which specifies the week
 * @returns the first date of the week
 */
export declare function getFirstDayOfWeek(date: Date): Date;
/**
 * Generates all dates within a month, given a date within that month.
 *
 * @remarks
 * First date is the first monday, the first week of that month
 *
 * @param date - A date within the month
 */
export declare function generateCalendar(date: Date): IterableIterator<Date>;
export declare const rawDayNames: string[];
export declare const months: string[];
export declare const getShorteningFn: (length: number) => (str: string) => string;
export declare const getDayNames: (l?: number | undefined) => string[];
export declare const monthName: (d: Date, length?: number | undefined) => string;