import { IObservable } from '@lifaon/rx-js-light';
import { ILocales } from '../locales/locales.type';
import { IDateTimeFormatOptions, IDateTimeFormatValue } from './date-time-format.type';
export declare function dateTimeFormatObservable(value: IObservable<IDateTimeFormatValue>, locales: IObservable<ILocales>, options: IObservable<IDateTimeFormatOptions>): IObservable<string>;