/**
 * Encode a value to MessagePack bytes with structuredClone semantics.
 *
 * @example
 * ```ts
 * import { encode, decode } from '@lostgradient/weft';
 *
 * const data = { name: 'Alice', createdAt: new Date(), tags: new Set(['admin']) };
 * const bytes = encode(data);
 * console.log(bytes instanceof Uint8Array); // true
 *
 * const restored = decode(bytes) as typeof data;
 * console.log(restored.name);          // 'Alice'
 * console.log(restored.tags instanceof Set); // true
 * ```
 */
export declare function encode(value: unknown): Uint8Array;
/**
 * Decode MessagePack bytes back to a value.
 *
 * @example
 * ```ts
 * import { encode, decode } from '@lostgradient/weft';
 *
 * const original = { id: 42, labels: new Map([['env', 'prod']]) };
 * const bytes = encode(original);
 * const result = decode(bytes) as typeof original;
 * console.log(result.id);                      // 42
 * console.log(result.labels.get('env'));        // 'prod'
 * ```
 */
export declare function decode(bytes: Uint8Array): unknown;