/**
 * @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
 */
/**
 * Searches and returns the lowest common ancestor of two given nodes.
 *
 * @param nodeA First node.
 * @param nodeB Second node.
 * @returns Lowest common ancestor of both nodes or `null` if nodes do not have a common ancestor.
 */
export declare function getCommonAncestor(nodeA: Node, nodeB: Node): Node | null;