/**
 * Converts data to a JSON-compatible format by replacing BigInts with numbers/strings
 * and reviving date strings back to Date objects.
 *
 * @example
 * const data = { id: BigInt(1), date: "2024-01-25T14:30:00Z" };
 * jsonify(data) // { id: 1, date: [Date Object] }
 *
 * @param data The data to process.
 * @returns The processed data.
 */
export declare function jsonify<T>(data: T): T;