export declare function escapeXml(s: string): string;
/**
 * Best-effort JSON extractor for LLM grader responses. Tries, in order:
 *
 *   1. Parse the whole string (with ```json``` fencing stripped).
 *   2. Scan for every top-level balanced `{...}` block, respecting string
 *      quoting so JSON-internal `{` / `}` don't confuse depth counting.
 *   3. Try the blocks from last to first — graders almost always put the
 *      answer *after* their reasoning prose.
 *
 * Returns the first successful parse, or `null` if nothing parses.
 */
export declare function tryParseJson(s: string): unknown;
//# sourceMappingURL=utils.d.ts.map