curl --request GET \
  --url https://api.piriod.com/retentions/{id}/finalize/ \
  --header 'Authorization: <api-key>' \
  --header 'x-simple-workspace: <x-simple-workspace>'

{
  "supplier": "<string>",
  "document": 123,
  "number": 123,
  "date": "2023-12-25",
  "lines": [
    {
      "name": "<string>",
      "amount": 123,
      "quantity": 123,
      "id": 123,
      "description": "<string>",
      "exempt": false,
      "tax": 123,
      "tax_percent": 123,
      "total": 123,
      "discount": 123
    }
  ],
  "id": 123,
  "amount": 123,
  "exempt": 123,
  "tax": 123,
  "tax_percent": 123,
  "subtotal": 123,
  "total": 123,
  "discount": 123,
  "biller_status": "<string>",
  "tax_agency": {},
  "local_file": "<string>",
  "imported": true,
  "test_mode": true,
  "created": "2023-11-07T05:31:56Z",
  "updated": "2023-11-07T05:31:56Z"
}