import { DeliveryReport, MOBinary, MOMedia, MOText, RecipientDeliveryReport } from '../../../models';
import { CallbackProcessor } from '@sinch/sdk-client';
import { IncomingHttpHeaders } from 'http';
export type SmsCallback = DeliveryReport | RecipientDeliveryReport | MOText | MOBinary | MOMedia;
export declare class SmsCallbackWebhooks implements CallbackProcessor<SmsCallback> {
    private readonly appSecret;
    constructor(appSecret?: string);
    validateAuthenticationHeader(headers: IncomingHttpHeaders, body: any, _path?: string, _method?: string): boolean;
    /**
     * Reviver for an SMS Event.
     * This method ensures the object can be treated as an SMS Event and should be called before any action is taken to manipulate the object.
     * @param {any} eventBody - The event body containing the SMS event notification.
     * @return {SmsCallback} - The parsed SMS event object
     */
    parseEvent(eventBody: any): SmsCallback;
    /**
     * Static reviver for an SMS Event.
     * This method ensures the object can be treated as an SMS Event.
     * @param {any} eventBody - The event body containing the SMS event notification.
     * @return {SmsCallback} - The parsed SMS event object
     */
    static parseEvent(eventBody: any): SmsCallback;
}