UpdateInvoiceRequest

{
    "customer_email": "user@example.com",
    "customer_name": "string",
    "customer_address": "string",
    "customer_phone": "string",
    "tax_rate": 0,
    "due_date": "2019-08-24T14:15:22.123Z",
    "notes": "string",
    "metadata": {
        "property1": "string",
        "property2": "string"
    }
}