import { UmbLitElement } from '../../packages/core/lit-element/index.js';
import './components/index.js';
export declare class UmbBackofficeElement extends UmbLitElement {
    #private;
    /**
     * Backoffice extension registry.
     * This enables to register and unregister extensions via DevTools, or just via querying this element via the DOM.
     */
    extensionRegistry: import("../../packages/core/extension-registry/index.js").UmbBackofficeExtensionRegistry;
    constructor();
    firstUpdated(): Promise<void>;
    render(): import("lit-html").TemplateResult<1>;
    static readonly styles: import("lit").CSSResult[];
}
export default UmbBackofficeElement;
declare global {
    interface HTMLElementTagNameMap {
        'umb-backoffice': UmbBackofficeElement;
    }
}