Sourceval to_value :
AccountFreeTrialInfo.t list->[> `List of
[> `Structure of
(string
* [> `List of
[> `Structure of
(string * [> `Enum of string| `Integer of Integer.t ])
list ]
list| `String of String_.t| `Structure of
(string
* [> `Structure of
(string
* [> `Integer of Integer.t| `Structure of
(string * [> `Integer of Integer.t ]) list ])
list ])
list ])
list ]
list ]