# CreateTransactionRequest ## Fields | Field | Type | Required | Description | | --------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | | `shippo_api_version` | *Optional[str]* | :heavy_minus_sign: | String used to pick a non-default API version to use | | `request_body` | [Optional[Union[components.TransactionCreateRequest, components.InstantTransactionRequestBody]]](../../models/operations/createtransactionrequestbody.md) | :heavy_minus_sign: | Examples. |