import { TDateFormat, TDatePickerDataVariant, TDatePickerVariant } from "../DatePicker.interface";
export declare const SINGLE_DATE_FORMAT_LENGTH: 10;
export declare const RANGE_START_DATE_FORMAT_LENGTH: 11;
export declare const RANGE_FULL_DATE_FORMAT_LENGTH: 21;
export declare const dateFormatSeparatorPlaces: number[];
export declare const isSingleDateComplete: (date: string) => boolean;
export declare const areRangeDatesComplete: (date: string) => boolean;
export declare const pickerVariants: Record<TDatePickerDataVariant, TDatePickerDataVariant>;
export declare const defaultProps: {
    variant: TDatePickerVariant;
    cancelText: string;
    confirmText: string;
    placeholder: string;
    placeholderForMonthVariant: string;
    dateFormat: TDateFormat;
};
export declare const defaultDatePickerButtonProps: {
    nextYear: {
        "aria-label": string;
    };
    previousYear: {
        "aria-label": string;
    };
    nextMonth: {
        "aria-label": string;
    };
    previousMonth: {
        "aria-label": string;
    };
};
export declare const dateSeparator: {
    "MM/dd/yyyy": string;
    "dd/MM/yyyy": string;
    "dd.MM.yyyy": string;
    "MM.dd.yyyy": string;
    "MMMM yyyy": string;
    MMMM: string;
};
export declare const defineEnabledInputKeyboardKeys: (dateFormat: TDateFormat) => string[];
export declare const getStartDate: (inputValue: string) => Date;
export declare const getEndDate: (inputValue: string) => Date;
export declare const getYearsPeriod: (date: Date, yearItemNumber?: number) => {
    startPeriod: number;
    endPeriod: number;
};