import { IWebhook, ICriteria, SubscriptionStatus } from '../../types';
import { Subscription } from './base';
/**
 * Implementation of message status subscription.
 */
export declare class MessageStatusSubscription extends Subscription {
    /**
     * Returns a new `MessageStatusSubscription` that is used to create a new message status subscription.
     *
     * @param webhook An [[IWebhook]] object.
     * @param criteria An [[ICriteria]] object.
     * @param status Status of subscription. An [[SubscriptionStatus]] object.
     */
    constructor(webhook: IWebhook, criteria: ICriteria, status?: SubscriptionStatus);
}