Cart-Summary

{
  "summary": {
    "subtotal": 3900,
    "total": 4400,
    "discount": 2000,
    "payment_amount": 4400,
    "tax_rates": [],
    "total_tax": 0,
    "total_fee": 0,
    "tip": 50,
    "loyalty": {
      "points_spent": 0,
      "points_accrued": 0,
      "available_points": 0
    }
  }
}