text: import { combineReducers } from 'redux';
  import { createSelector } from 'reselect';
  import { cities, 
      getForecastDataFromCities as _getForecastDataFromCities, 
      getWeatherCities as _getWeatherCities } from './cities';
  import { city } from './city';
  
  export default combineReducers({
      cities,
      city,
  });
  
  export const getCity = createSelector(state => state.city, city => city);
  
  export const getForecastDataFromCities = createSelector(state => state.cities, getCity, _getForecastDataFromCities);
  
  export const getWeatherCities = createSelector( state => state.cities, _getWeatherCities);