code: function itemsCallback(error, itemsResponse) {
      if (error) throw error;
  
      var items = itemsResponse.searchResult.item;
  
      console.log('Found', items.length, 'items');
      
      for (var i = 0; i < items.length; i++) {
        console.log('- ' + items[i].title);
      }  
    }
docs: gets all the items together in a merged array