export declare function getStartAndEndDate(today: Date, daltaDays: number): {
    startDate: Date;
    endDate: Date;
};
export declare const defaultDayTitles: string[];
export type DateRecordKeys = 'year' | 'month' | 'Sun' | 'Mon' | 'Tue' | 'Wed' | 'Thu' | 'Fri' | 'Sat';
export type DateRecord = Record<DateRecordKeys, number>;
export declare function getRecords(startDate: Date, endDate: Date): DateRecord[];
export declare function getMonthString(monthIndex: number): string;
export declare function getWeekdayString(weekdayIndex: number): string;