export declare class Platform {
    protected env: any;
    constructor(env: any);
    preprocessParams(params: any): any;
}
export declare class Facebook extends Platform {
    setWebhook(callback: any): Promise<{}>;
    subscribeToPage(): Promise<{}>;
    configureNLP(): Promise<{}>;
    setWecomeScreen(): Promise<{}>;
    setPersistentMenu(): Promise<{}>;
    updateProfile(body: any, message: any): Promise<{}>;
}
export declare class Telegram extends Platform {
    setWebhook(callback: any): Promise<{}>;
}
export declare class Viber extends Platform {
    setWebhook(callback: any): Promise<{}>;
}