/**
 * Simple scrollable view for displaying a diff.
 * The component is intentionally lightweight and mirrors the UX of
 * HistoryOverlay: Up/Down or j/k to scroll, PgUp/PgDn for paging and Esc to
 * close. The caller is responsible for computing the diff text.
 */
export default function DiffOverlay({ diffText, onExit, }: {
    diffText: string;
    onExit: () => void;
}): JSX.Element;
