/**
* @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 bookmark/utils
*/
/**
* Returns `true` if the bookmark id is valid; otherwise, returns `false`.
*
* @internal
*/
export declare function isBookmarkIdValid(id: string): boolean;