/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/
/**
* @module collaboration-core/utils/getdatetimeformatter
* @publicApi
*/
import type { LocaleConfig } from "../config.js";
import { type Locale } from "@ckeditor/ckeditor5-utils";
/**
* Returns a function that formats the date to the set format.
*
* The default formatting can be changed by setting a custom formatting function to `config.locale.dateTimeFormat`.
*
* ```ts
* 	import { DateTime } from 'luxon';
*
*		ClassicEditor
*			.create( {
*				attachTo: document.querySelector( '#editor' ),
*				toolbar: {
*					items: [ 'bold', 'italic', '|', 'comment' ]
*				},
*				sidebar: {
*					container: document.querySelector( '#sidebar' )
*				},
*				locale: {
*					dateTimeFormat: date => DateTime.fromJSDate( date ).toFormat( 'dd/LL/yyyy' )
*				}
*			} )
*			.catch( error => console.error( error ) );
* ```
*/
export declare function getDateTimeFormatter(localeConfig?: LocaleConfig, locale?: Locale): (date: Date | string) => string;