import TemplateControl from "../../core/TemplateControl.js";
export default class PopupWindow extends TemplateControl {
    static observedAttributes: string[];
    root: ShadowRoot;
    titleElement: HTMLElement;
    container: HTMLSlotElement;
    prepare(): Promise<void>;
    onChildAdded(child: Element): void;
    onChildRemoved(child: HTMLElement): void;
    attributeChangedCallback(name: any, oldValue: any, newValue: any): void;
}
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