import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: 'My API Key',
});

const additionalDocument = await client.portingOrders.additionalDocuments.create(
  '182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e',
);

console.log(additionalDocument.data);

{
  "data": [
    {
      "id": "2acd1061-33cb-49b8-8014-beb6dc3fedbf",
      "document_id": "40bc547a-7f96-4cd5-926a-da4842671e88",
      "document_type": "loa",
      "porting_order_id": "9d7b3b8e-4e67-4837-9c44-d110cd2c82a1",
      "record_type": "porting_additional_document",
      "created_at": "2023-06-01T10:00:00.00000Z",
      "updated_at": "2023-06-01T10:00:00.00000Z"
    }
  ]
}