import type { CSSResultGroup } from '../../../../external/lit/index.js';
import { UmbLitElement } from '../../lit-element/index.js';
export declare class UmbBackofficeNotificationContainerElement extends UmbLitElement {
    #private;
    private _notificationsElement?;
    private _notifications?;
    private _notificationContext?;
    constructor();
    connectedCallback(): void;
    disconnectedCallback(): void;
    private _observeNotifications;
    private _getNotificationText;
    private _announce;
    private _announceNewest;
    render(): import("lit-html").TemplateResult<1>;
    static styles: CSSResultGroup;
}
declare global {
    interface HTMLElementTagNameMap {
        'umb-backoffice-notification-container': UmbBackofficeNotificationContainerElement;
    }
}