type CaughtError = {
    error: unknown;
    componentStack: string | null;
};
export type PreviewHealthActions = {
    /** The boundary committed the page: a mount, or a recovery after a reset. */
    boundaryRendered: (boundaryId: string) => void;
    boundaryCaughtError: (boundaryId: string, caught: CaughtError) => void;
    boundaryUnmounted: (boundaryId: string) => void;
    rootCaughtError: (error: unknown) => void;
    buildErrorsChanged: (messages: string[]) => void;
};
type PreviewHealthMonitor = {
    actions: PreviewHealthActions;
    dispose: () => void;
};
declare global {
    interface Window {
        __reploPreviewHealthMonitor?: PreviewHealthMonitor;
    }
}
/**
 * Next's error dialog locks the body's scroll while it's open, and the
 * stylesheet above hides that dialog, so the page would stop scrolling for no
 * visible reason. Only a lock taken while the dialog is mounted is released;
 * a site's own lock (a mobile menu, a modal) is left alone.
 */
export declare function releaseNextOverlayScrollLock(): () => void;
/** The document's preview health actions; null outside an embedded preview. */
export declare function getPreviewHealthActions(): PreviewHealthActions | null;
export declare function resetPreviewHealthMonitorForTests(): void;
export {};