Values.InstanceBlockDeviceMappingsSourceval to_value :
InstanceBlockDeviceMapping.t list ->
[> `List of
[> `Structure of
(string
* [> `String of NonEmptyString.t
| `Structure of
(string
* [> `Boolean of NullableBoolean.t
| `Enum of string
| `Integer of EbsIopsInteger.t
| `String of NonEmptyString.t ])
list ])
list ]
list ]