def data(self, feed, data_id=None):
        if data_id is None:
            path = "api/feeds/{0}/data".format(feed)
            return list(map(Data.from_dict, self._get(path)))
        else:
            path = "api/feeds/{0}/data/{1}".format(feed, data_id)
            return Data.from_dict(self._get(path))
Retrieve data from a feed.  Feed can be a feed ID, feed key, or feed
dataset/ETHPy150Open adafruit/io-client-python/Adafruit_IO/client.py/Client.data