/**
 * Fired on `document` (not on the component) when the host page's
 * CustomEvent constructor was found broken at bundle init — before any
 * component exists, so the element itself cannot carry it.
 * detail: { issue: 'legacy-customevent-polyfill', outcome: 'repaired' | 'unrepairable' }
 */
export declare const ENVIRONMENT_WARNING_EVENT = "eoEnvironmentWarning";
/**
 * Runs once when the widget bundle initializes, before any component renders
 * or emits: hostile-host hardening lives here.
 */
export default function (): void;