For dimension parsing

def _get_example_csv(self):
        """For dimension parsing
        """
        station_key = self.json["station"][0]["key"]
        period = "corrected-archive"
        url = self.url\
                  .replace(".json", "/station/{}/period/{}/data.csv"\
                  .format(station_key, period))

        r = requests.get(url)
        if r.status_code == 200:
            return DataCsv().from_string(r.content)
        else:
            raise Exception("Error connecting to api")