import type { CSSResultGroup } from '../../../../external/lit/index.js';
import { UmbLitElement } from '../../lit-element/index.js';
export declare class UmbBackofficeModalContainerElement extends UmbLitElement {
    #private;
    private _modalElementMap;
    private _modals;
    fillBackground: boolean;
    private _modalManager?;
    constructor();
    private _observeModals;
    render(): import("lit-html").TemplateResult<1>;
    static styles: CSSResultGroup;
}
declare global {
    interface HTMLElementTagNameMap {
        'umb-backoffice-modal-container': UmbBackofficeModalContainerElement;
    }
}