import type { InputSizeVariant } from '../Input';
export declare function formatValue(dateRange?: {
    startDate: Date | null;
    endDate: Date | null;
}): string;
export declare function changeValueByMask(value: string, inputElement: HTMLInputElement): string;
export declare function stringToDate(value: string): Date | undefined;
export declare function checkValidDateRange(value: string): boolean;
export declare function selectionDateRange(inputElement: HTMLInputElement): void;
export declare function formatStringDate(stringDate: string): string | null;
export declare function getSize(size: InputSizeVariant): {
    calendarSize: "s" | "m" | "l";
    iconSize: "s" | "m";
};