Merge pull request #125 from lahdjirayhan/warn-both-historic

fix: Emit warning when both city and city_id arguments are provided

src/ozone/ozone.py

@@ -662,6 +662,12 @@ def get_historical_data(
  "you can use get_city_station_options method first to "
  "identify the correct city ID."
  )
+ else:
+ if city is not None:
+ warnings.warn(
+ "Both arguments city and city_id were supplied. "
+ "Only city_id will be used. city argument will be ignored."
+ )
 
  df = get_data_from_id(city_id)
  return self._format_output(data_format, df)