/**
* @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 undo/undocommand
*/
import { UndoRedoBaseCommand } from "./basecommand.js";
import type { Batch } from "@ckeditor/ckeditor5-engine";
/**
* The undo command stores {@link module:engine/model/batch~Batch batches} applied to the
* {@link module:engine/model/document~ModelDocument document} and is able to undo a batch by reversing it and transforming by
* batches from {@link module:engine/model/document~ModelDocument#history history} that happened after the reversed batch.
*
* The undo command also takes care of restoring the {@link module:engine/model/document~ModelDocument#selection document selection}.
*/
export declare class UndoCommand extends UndoRedoBaseCommand {
	/**
	* Executes the command. This method reverts a {@link module:engine/model/batch~Batch batch} added to the command's stack, transforms
	* and applies the reverted version on the {@link module:engine/model/document~ModelDocument document} and removes the batch from
	* the stack. Then, it restores the {@link module:engine/model/document~ModelDocument#selection document selection}.
	*
	* @fires execute
	* @fires revert
	* @param batch A batch that should be undone. If not set, the last added batch will be undone.
	*/
	override execute(batch?: Batch | null): void;
}