text: var HongKongPollution = require('../index.js');
  
  var hongKongPollution = new HongKongPollution({lang: 'en'});
  
  hongKongPollution.getAQHIHistory()
    .then(function(aqhiHistory) {
      // Format in a pretty way
      console.log(JSON.stringify(aqhiHistory,null,1));
    }).catch(function(err) {
      console.error('There was an error!', err);
    });
  