How to use the stravalib.exc.RateLimitExceeded function in stravalib

def _raise_rate_limit_exception(self, timeout, limit_rate):
        raise exc.RateLimitExceeded("Rate limit of {0} exceeded. "
                                    "Try again in {1} seconds.".format(limit_rate, timeout),
                                    limit=limit_rate, timeout=timeout)

def __call__(self, args):
        """
        Register another request is being issued.

        Depending on configuration of the rule will pause if rate limit has
        been reached, or raise exception, etc.
        """
        # First check if the deque is full; that indicates that we'd better check whether
        # we need to pause.
        if len(self.tab) == self.requests:
            # Grab the oldest (leftmost) timestamp and check to see if it is greater than 1 second
            delta = datetime.now() - self.tab[0]
            if delta < self.timeframe:  # Has it been less than configured timeframe since oldest request?
                if self.raise_exc:
                    raise exc.RateLimitExceeded("Rate limit exceeded (can try again in {0})".format(self.timeframe - delta))
                else:
                    # Wait the difference between timeframe and the oldest request.
                    td = self.timeframe - delta
                    sleeptime = hasattr(td, 'total_seconds') and td.total_seconds() or total_seconds(td)
                    self.log.debug("Rate limit triggered; sleeping for {0}".format(sleeptime))
                    time.sleep(sleeptime)
        self.tab.append(datetime.now())

"""


class RateLimitExceeded(RuntimeError):
    """
    Exception raised when the client rate limit has been exceeded.

    http://strava.github.io/api/#access
    """
    def __init__(self, msg, timeout=None, limit=None):
        super(RateLimitExceeded, self).__init__()
        self.limit = limit
        self.timeout = timeout


class RateLimitTimeout(RateLimitExceeded):
    """
    Exception raised when the client rate limit has been exceeded
    and the time to clear the limit (timeout) has not yet been reached

    http://strava.github.io/api/#access
    """


class ActivityUploadFailed(RuntimeError):
    pass


class ErrorProcessingActivity(ActivityUploadFailed):
    pass

def __init__(self, msg, timeout=None, limit=None):
        super(RateLimitExceeded, self).__init__()
        self.limit = limit
        self.timeout = timeout