export interface DiffViewerProps {
    /** Original (before) text content. */
    before: string;
    /** Updated (after) text content. */
    after: string;
    /** Content format — used as a display label; does not affect diff logic. */
    format: 'yaml' | 'markdown' | 'text';
    /** Optional CSS class for the outer wrapper. */
    className?: string;
    /** Number of unchanged context lines to show around each change. Default 3. */
    contextLines?: number;
}
export declare function DiffViewer({ before, after, format, className, contextLines, }: DiffViewerProps): import("react/jsx-runtime").JSX.Element;