import { ModalOptions } from './modal.js';
export declare class ModalManager {
    private static instance;
    private modalElement;
    private constructor();
    get nid(): string;
    get modalHidden(): boolean;
    static getInstance(): ModalManager;
    updateModal(options: ModalOptions, delay?: number): Promise<void>;
    removeModal(): void;
    private getModal;
    private updateModalAsset;
    private registerRootClickListener;
    private unregisterRootClickListener;
    private handleRootClick;
}
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