Alternate Post Purchase Script for cart line item passing

<!-- Begin Talkable integration code -->
<script>
  window._talkableq = window._talkableq || [];
  var _talkable_purchase_items = [];

  // Start for loop - iterate through cart and push details for each line item
  _talkable_purchase_items.push({
    product_id: '', // Item Product ID. Example: 'sku0001'
    price: '', // Item Unit Price. Example: '199.00'
    quantity: '', // Item Quantity. Example: '1'
    title: '' // Name of a product. Example: 'Product Name'
  });  // End for loop

  var _talkable_data = {
    purchase: {
      order_number: '', // Required - Unique order number. Example: '100011'
      subtotal: '', // Required - Order subtotal (pre-tax, post-discount). Example: '23.97'
      coupon_code: '', // Coupon code that was used at checkout (pass multiple as an array). Example: 'SAVE20'
      currency_iso_code: '', // Required for multi-currency sites. Example: 'USD'
      items: _talkable_purchase_items,  // Cart items declared in the example above
      shipping_zip: '', // Used for fraud protection by address. Example: '02222'
      shipping_address: '' // Full address of the order, make sure to strictly follow a format: 'Apt #, Street address, City, State, ZIP, Country'
    },
    customer: {
      email: '', // Required - Email of the customer who issued a purchase. Example: 'customer@example.com'
      traffic_source: '' // The source of the traffic driven to the campaign. Example: 'facebook'
    }
  };
  window._talkableq.push(['register_purchase', _talkable_data]);
</script>
<!-- End Talkable integration code -->