/**
* @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 heading/headingcommand
*/
import { Command, type Editor } from "@ckeditor/ckeditor5-core";
/**
* The heading command. It is used by the {@link module:heading/heading~Heading heading feature} to apply headings.
*/
export declare class HeadingCommand extends Command {
	/**
	* If the selection starts in a heading (which {@link #modelElements is supported by this command})
	* the value is set to the name of that heading model element.
	* It is  set to `false` otherwise.
	*
	* @observable
	* @readonly
	*/
	value: false | string;
	/**
	* Set of defined model's elements names that this command support.
	* See {@link module:heading/headingconfig~HeadingOption}.
	*/
	readonly modelElements: Array<string>;
	/**
	* Creates an instance of the command.
	*
	* @param editor Editor instance.
	* @param modelElements Names of the element which this command can apply in the model.
	*/
	constructor(editor: Editor, modelElements: Array<string>);
	/**
	* @inheritDoc
	*/
	override refresh(): void;
	/**
	* Executes the command. Applies the heading to the selected blocks or, if the first selected
	* block is a heading already, turns selected headings (of this level only) to paragraphs.
	*
	* @param options.value Name of the element which this command will apply in the model.
	* @fires execute
	*/
	override execute(options: {
		value: string;
	}): void;
}