Values.DeliverySourcesSourceval to_value :
DeliverySource.t list ->
[> `List of
[> `Structure of
(string
* [> `Enum of string
| `List of [> `String of Arn.t ] list
| `Map of
([> `String of TagKey.t ] * [> `String of TagValue.t ]) list
| `String of DeliverySourceName.t ])
list ]
list ]