> ## Documentation Index
> Fetch the complete documentation index at: https://crossmint-devin-1787949784-wallet-docs-two-concept-model.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CrossmintCheckoutOrder

> Flutter Sealed Class

**Sealed Class**

How to create an order: reference an existing one or define new line items.

```dart theme={null}
sealed class CrossmintCheckoutOrder
```

## Constructors

### CrossmintCheckoutOrder

```dart theme={null}
const CrossmintCheckoutOrder()
```