InitiateCheckoutResponseBackup

{
    "order": {
        "amount": 0,
        "invoice_number": "string",
        "currency": "string",
        "session_id": "string",
        "callback_url": "string",
        "line_items": [
            {
                "name": "string",
                "price": 0,
                "quantity": 0
            }
        ]
    },
    "payment": {
        "payment_due_date": 0
    },
    "customer": {
        "name": "string",
        "email": "string",
        "phone": "string",
        "address": "string",
        "country": "string"
    }
}