/**
 * Deterministic canonical JSON serialization for arbitrary values.
 *
 * Object keys are sorted at every depth so two values that differ only in
 * key order serialize identically — the property any hash-then-compare
 * scheme (manifest digests, contract hashes) depends on.
 *
 * @module worker/manifest/canonical-json
 */
/**
 * Serialize an arbitrary value with object keys sorted at every depth.
 *
 * Accepts `unknown` rather than a `JSONValue` bound because callers such as
 * a JSON-Schema converter's output are structurally JSON-safe by
 * construction (trusted, already-serialized-once data) without necessarily
 * satisfying that type at the TypeScript level. `undefined` values inside
 * objects are dropped, matching `JSON.stringify`'s own behavior, since this
 * function is a drop-in canonical replacement for it.
 */
export declare function canonicalJsonStringify(value: unknown): string;