Values.ProcurementPortalPreferenceSummariesSourceval to_value :
ProcurementPortalPreferenceSummary.t list ->
[> `List of
[> `Structure of
(string
* [> `Boolean of Boolean.t
| `Enum of string
| `Long of Long.t
| `String of AccountIdString.t
| `Structure of
(string
* [> `List of [> `String of InvoiceUnitArnString.t ] list ])
list
| `Timestamp of Timestamp.t ])
list ]
list ]