declare const getDateISOString: (operator: any, value: number, date?: string) => {
    start: string | Date;
    end: string | Date;
};
declare const getDateFromOffset: (operator: any, offsetValue: number, type_date: string) => string | Date;
declare const getTimePeriodOffset: (offset: string) => Object;
export { getDateISOString, getDateFromOffset, getTimePeriodOffset };