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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def teb_retry(exc=RequestException, when=dict(response__status_code=429), delay='response__headers__Retry-After', max_collisions=MAX_COLLISIONS, default_retry=DEFAULT_RETRY):
 """Decorator catching rate limits exceed events during a crawl task. It retries the task later on, following a truncated exponential backoff. """

    def wrap(f):
        @functools.wraps(f)
        def wrapped_f(*args, **kwargs):
            attempt = kwargs.pop('teb_retry_attempt', 0)
            try:
                return f(*args, **kwargs)
            except exc as e:
                if kwargsql.and_(e, **when):
                    try:
                        retry_after = kwargsql.get(e, delay)
                    except:
                        retry_after = default_retry
                    else:
                        if retry_after is not None:
                            retry_after = int(retry_after)
                        else:
                            retry_after = default_retry
                    countdown = retry_after + truncated_exponential_backoff(
                        retry_after, attempt % max_collisions)
                    raise Retry(kwargs=dict(attempt=attempt + 1),
                                countdown=countdown)
                else:
                    raise e, None, sys.exc_info()[2] # flake8: noqa.
        return wrapped_f
    return wrap