/**
* @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 engine/model/rootelement
*/
import { ModelElement } from "./element.js";
import { type ModelDocument } from "./document.js";
/**
* Type of {@link module:engine/model/element~ModelElement} that is a root of a model tree.
*/
export declare class ModelRootElement extends ModelElement {
	/**
	* Unique root name used to identify this root element by {@link module:engine/model/document~ModelDocument}.
	*/
	override readonly rootName: string;
	/**
	* Document that is an owner of this root.
	*/
	private readonly _document;
	/**
	* @internal
	*/
	_isAttached: boolean;
	/**
	* Informs if the root element is loaded (default).
	*
	* @internal
	*/
	_isLoaded: boolean;
	/**
	* Creates root element.
	*
	* @param document Document that is an owner of this root.
	* @param name Node name.
	* @param rootName Unique root name used to identify this root element by {@link module:engine/model/document~ModelDocument}.
	*/
	constructor(document: ModelDocument, name: string, rootName?: string);
	/**
	* {@link module:engine/model/document~ModelDocument Document} that owns this root element.
	*/
	override get document(): ModelDocument;
	/**
	* Informs if the root element is currently attached to the document, or not.
	*
	* A detached root is equivalent to being removed and cannot contain any children or markers.
	*
	* By default, a newly added root is attached. It can be detached using
	* {@link module:engine/model/writer~ModelWriter#detachRoot `Writer#detachRoot`}. A detached root can be re-attached again using
	* {@link module:engine/model/writer~ModelWriter#addRoot `Writer#addRoot`}.
	*/
	override isAttached(): boolean;
	/**
	* Converts `RootElement` instance to `string` containing its name.
	*
	* @returns `RootElement` instance converted to `string`.
	*/
	override toJSON(): unknown;
}