Values.DatapointsSourceval to_value :
Datapoint.t list ->
[> `List of
[> `Structure of
(string
* [> `Double of DatapointValue.t
| `Enum of string
| `Map of
([> `String of ExtendedStatistic.t ]
* [> `Double of DatapointValue.t ])
list
| `Timestamp of Timestamp.t ])
list ]
list ]