Moritz

It would be nice if simple type aliases e.g. enums would implement [The Gorm Scanner/Valuer Interface](https://gorm.io/docs/data_types.html#Scanner-x2F-Valuer). Since Gorm is with 30k Stars on GitHub (https://github.com/go-gorm/gorm) is quite frequently used in...

The [docs](https://developer-docs.amazon.com/sp-api/docs/messaging-api-v1-reference#post-messagingv1ordersamazonorderidmessagesinvoice) and also the referenced [spec](https://github.com/amzn/selling-partner-api-models/blob/main/models/messaging-api-model/messaging.json) defines the operation _sendInvoice_ (POST /messaging/v1/orders/{amazonOrderId}/messages/invoice) which is not implemented/generated in the [SDKs messaging API](https://github.com/amzapi/selling-partner-api-sdk/blob/master/messaging/api.gen.go).

Documentation Website leverages Error information

1

### Describe the bug Hi guys, not sure if you are aware, but a type on a link shows a stacktrace where you dynamically import stuff from you _generated directory....

write: Protect against sending messages after close

12

Closes #448