export declare const runtime: import('@arcgis/lumina').Runtime;
/**
 * "customElement" needs to be exported - it will be used by the build system.
 * You should not call it directly.
 */
export declare const customElement: (tagName: string, component: typeof import('@arcgis/lumina').LitElement) => void, getAssetPath: (suffix: string) => string, setAssetPath: (path: URL | string) => void;