export declare class DefineApplication extends HTMLElement {
    private contentShadowRoot;
    private installed;
    constructor();
    static get observedAttributes(): string[];
    private init;
    private get defaultApplet();
    private defineApplet;
    setupDefaultApplet(name: string): void;
    attributeChangedCallback(name: string, oldValue: string, newValue: string): void;
    connectedCallback(): void;
}