ViewModelInvoiceItem

{
    "itemRef": 0,
    "stockRef": 0,
    "invoiceRef": 0,
    "quotationItemRef": 0,
    "quantity": 0,
    "fee": 0,
    "price": 0,
    "discount": 0,
    "addition": 0,
    "tax": 0,
    "duty": 0,
    "netPrice": 0,
    "code": "string",
    "description": "string",
    "customerDiscount": 0,
    "customerDiscountRate": 0
}