Sourceval to_value :
Action.t list->[> `List of
[> `Structure of
(string
* [> `Enum of string| `List of
[> `Structure of
(string
* [> `Enum of string| `String of SubscriberAddress.t ])
list ]
list| `String of ActionId.t| `Structure of
(string
* [> `Double of NotificationThreshold.t| `Enum of string| `Structure of
(string
* [> `Enum of string| `List of [> `String of Role.t ] list| `String of PolicyArn.t ])
list ])
list ])
list ]
list ]