export declare type RangeValue<T> = {
    /**
     * The start value of the range.
     */
    start: T;
    /**
     * The end value of the range.
     */
    end: T;
};
export declare type DateValue = Date | number;
export declare type MaybeDateValue = DateValue | null;
export declare type DateRangeValue = RangeValue<Date | null>;