def get(self, at):
        url = "{}/{}Z".format(self.url(), at.isoformat())
        response = self.client.get(url)
        response.raise_for_status()
        data = response.json()
        data['at'] = self._parse_datetime(data['at'])
        return self._coerce_datapoint(data)
:reference: https://dev.twitter.com/rest/reference/get/followers/ids
dataset/ETHPy150Open xively/xively-python/xively/managers.py/DatapointsManager.get--crossover with--dataset/ETHPy150Open tweepy/tweepy/tweepy/api.py/API.followers_ids