import { AbstractCommand } from '../AbstractCommand';
import { Document } from '../../core/models/Document';
/**
 * A command used to create a new channel item in aa AsyncAPI document.
 * @author laurent.broudoux@gmail.com
 * @param {string} newChannel
 * @class
 * @extends AbstractCommand
 */
export declare class NewChannelCommand extends AbstractCommand {
    _newChannel: string;
    _channelExisted: boolean;
    _emptyChannels: boolean;
    constructor(newChannel?: any);
    /**
     *
     * @param {Document} document
     */
    execute(document: Document): void;
    /**
     *
     * @param {Document} document
     */
    undo(document: Document): void;
}