import { XMLBuilder, XMLWriterOptions } from 'xmlbuilder2/lib/interfaces';
import { Verb } from './Verb';
export declare const SSML_REGEX: RegExp;
/**
 * @export
 * @class Root
 * @extends {Verb}
 * Root class for BXML and Response Tags
 */
export declare class Root {
    name: string;
    nestedVerbs?: Verb[];
    /**
     * Creates an instance of Root
     * @param name [string] Name of the XML element
     * @param nestedVerbs [Verb | Array<Verb>] Nested Verb or Array of Nested Verbs
     */
    constructor(name: string, nestedVerbs?: Verb | Verb[]);
    /**
     * Generate an XML element for the verb
     */
    generateXml(): XMLBuilder;
    /**
     * Add a verb or verbs to the root element
     * @param {Verb | Verb[]} verbs The verb or verbs to add
     */
    addVerbs(verbs: Verb | Verb[]): void;
    /**
     * Return BXML representation of this element
     * @param options XML Serialization options
     */
    toBxml(options?: XMLWriterOptions): string;
}