{
"key": "string",
"changes": {
"invoiceId": "string",
"issueDate": "2019-08-24",
"currencyCode": "string",
"taxCurrencyCode": "string",
"taxBreakdown": [
{
"taxCategory": "string",
"taxPercent": {
"units": "string",
"nanos": 0
},
"amountBeforeTax": {
"units": "string",
"nanos": 0
},
"taxAmount": {
"units": "string",
"nanos": 0
}
}
],
"isPurchase": true,
"source": "IMPORT_SOURCE_UNSPECIFIED",
"metadata": {}
},
"branchId": "string"
}