export declare const CLASSES: {
    alert: string;
    'alert--success': string;
    'alert--warning': string;
    'alert--error': string;
    'alert--info': string;
    'alert--with-title': string;
    alert__icon: string;
    alert__content: string;
    alert__message: string;
    alert__header: string;
    alert__title: string;
    alert__close: string;
};