curl --request GET \
  --url https://api.piriod.com/invoices/ \
  --header 'Authorization: <api-key>' \
  --header 'x-simple-workspace: <x-simple-workspace>'

{
  "count": 142,
  "results": [
    {
      "customer": "<string>",
      "document": 123,
      "date": "2023-12-25",
      "lines": [
        {
          "name": "<string>",
          "amount": 123,
          "quantity": 123,
          "id": "<string>",
          "description": "<string>",
          "total": 123,
          "exempt": false,
          "tax": 123,
          "tax_percent": 123,
          "discount": 123,
          "code": "<string>",
          "code_scheme": "<string>",
          "plan": 123,
          "retention": 123,
          "retention_percent": 0,
          "retention_scheme": "subtotal",
          "unit_label": "<string>"
        }
      ],
      "id": "inv_01H8XYZ123ABC",
      "number": 123,
      "currency": "<string>",
      "due_date": "2023-12-25",
      "period_start": "2023-12-25",
      "period_end": "2023-12-25",
      "note": "<string>",
      "amount": 123,
      "exempt": 123,
      "tax": 123,
      "tax_percent": 123,
      "subtotal": 123,
      "total": 123,
      "total_adjusted": 123,
      "retention": 123,
      "discount": 123,
      "custom_change": 2,
      "tax_agency": {},
      "local_file": "<string>",
      "subscription": 123,
      "imported": true,
      "uncollectible": "2023-11-07T05:31:56Z",
      "test_mode": true,
      "references": [
        {
          "date": "2023-12-25",
          "document": "<string>",
          "serial": "<string>",
          "description": "<string>"
        }
      ],
      "payments": [
        {}
      ],
      "created": "2023-11-07T05:31:56Z",
      "updated": "2023-11-07T05:31:56Z"
    }
  ],
  "next": "<string>",
  "previous": "<string>"
}