{
 "computed": {
  "item_discount_total": 6.66,
  "items_value": 30.03,
  "total": 40.92
 },
 "event": "purchase",
 "event_parameters": [
  {
   "name": "coupon",
   "note": "Coupon code applied to the transaction, at the event level.",
   "required": false,
   "type": "string"
  },
  {
   "name": "transaction_id",
   "note": "Unique identifier of the transaction.",
   "required": true,
   "type": "string"
  },
  {
   "name": "value",
   "note": "Sum of (price * quantity) for all items.",
   "required": true,
   "type": "number"
  },
  {
   "name": "currency",
   "note": "3-letter ISO 4217 code.",
   "required": true,
   "type": "string"
  },
  {
   "name": "items",
   "note": "Array of purchased items, each with its own coupon if one applies.",
   "required": true,
   "type": "array"
  }
 ],
 "page_numbers": [
  "10.01",
  "30.03",
  "4.90",
  "5.99",
  "40.92",
  "2.22",
  "6.66"
 ],
 "verified_example": {
  "coupon": "SUMMER_SALE",
  "currency": "USD",
  "item_discount_total": 6.66,
  "items": [
   {
    "coupon": "SUMMER_FUN",
    "discount": 2.22,
    "item_brand": "Google",
    "item_category": "Apparel",
    "item_id": "SKU_12345",
    "item_name": "Stan and Friends Tee",
    "price": 10.01,
    "quantity": 3
   }
  ],
  "shipping": 5.99,
  "tax": 4.9,
  "total": 40.92,
  "transaction_id": "T_12345_1",
  "value": 30.03
 }
}