<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def error_catch(f):
 """Handle unexpected errors within the rest function."""

    @wraps(f)
    def wrapper(*args, **kw):
        instance = args[0]
        try:
            result = f(*args, **kw)
            if isinstance(result, tuple):
                return jsonify(result[0]), result[1]
            else:
                return jsonify(result), 200
        except Exception as e:
            ret_dict = instance._create_ret_object(instance.FAILURE, None,
                                                   True,
                                                   instance.UNKNOWN_ERROR)
            log_dict = deepcopy(ret_dict)
            log_dict['error']['cause'] = e.message
            log_dict['error']['exception'] = str(e)
            log_dict['error']['ex'] = traceback.format_exc()
            instance.logger.error("Uncaught Exception Thrown", log_dict)
            return jsonify(ret_dict), 500
    return wrapper