/*!
 * Jodit Editor (https://xdsoft.net/jodit/)
 * Released under MIT see LICENSE.txt in the project root for license information.
 * Copyright (c) 2013-2026 Valerii Chupurnov. All rights reserved. https://xdsoft.net
 */
/**
 * @module helpers/checker
 */
import type { Nullable } from "../../../types/index";
/**
 * Define element is selection helper
 * @deprecated use Dom.isMarker instead
 */
export declare function isMarker(elm: Nullable<Node>): elm is HTMLElement;