import { DatePickerValue, DateTimeFromStr, DateTimeNumber, DateTimeToStr, DateTimeUnit, Milliseconds, TDatePickerHistory } from './interface';
export declare function getRelativeDiff(str: DateTimeFromStr): [DateTimeNumber, DateTimeUnit];
export declare function isDateTimeFromStr(suspected: unknown): suspected is DateTimeFromStr;
export declare function isDateTimeToStr(suspected: unknown): suspected is DateTimeToStr;
export declare function isRelative(suspected: DatePickerValue): boolean;
export declare function resolve(value: DatePickerValue): [Milliseconds, Milliseconds];
export declare const datePickerHistoryChange: (value: DatePickerValue, datePickerHistory: TDatePickerHistory, setDatePickerHistory: React.Dispatch<React.SetStateAction<TDatePickerHistory>>) => void;
export declare const copyText: (str: string) => boolean;