How to use the pyzotero.zotero_errors.HTTPError function in pyzotero

if error_codes.get(req.status_code):
        # check to see whether its 429
        if req.status_code == 429:
            # try to get backoff duration
            delay = req.headers.get("backoff")
            if not delay:
                raise ze.TooManyRetries(
                    "You are being rate-limited and no backoff duration has been received from the server. Try again later"
                )
            else:
                zot._set_backoff(delay)
        else:
            raise error_codes.get(req.status_code)(err_msg(req))
    else:
        raise ze.HTTPError(err_msg(req))

if delay > 32:
                # we've waited a total of 62 seconds (2 + 4 … + 32), so give up
                backoff.reset()
                raise ze.TooManyRetries("Continuing to receive HTTP 429 \
responses after 62 seconds. You are being rate-limited, try again later")
            time.sleep(delay)
            sess = requests.Session()
            new_req = sess.send(req.request)
            try:
                new_req.raise_for_status()
            except requests.exceptions.HTTPError:
                error_handler(new_req)
        else:
            raise error_codes.get(req.status_code)(err_msg(req))
    else:
        raise ze.HTTPError(err_msg(req))

def retry_zotero(wrapped, _instance, args, kwargs):
    """
    Retry the wrapped function if the Zotero API call fails.

    Caution: This decorator should only be used on simple functions, as the
    whole function is called repeatedly as long a Zotero fails.
    """
    attempts = 1
    while True:
        try:
            return wrapped(*args, **kwargs)
        except (
                requests.exceptions.ConnectionError,
                zotero_errors.HTTPError,
                zotero_errors.UnsupportedParams
        ) as e:
            current_app.logger.exception(e)
            if attempts < current_app.config['KERKO_ZOTERO_MAX_ATTEMPTS']:
                current_app.logger.warning(
                    "The Zotero API call has failed in {func}. "
                    "New attempt in {wait} seconds...".format(
                        func=wrapped.__name__,
                        wait=current_app.config['KERKO_ZOTERO_WAIT']
                    )
                )
                attempts += 1
                sleep(current_app.config['KERKO_ZOTERO_WAIT'])
            else:
                current_app.logger.error(
                    "The maximum number of API call attempts to Zotero has "