Values.IotTopicPublishActionSourceInformation required to publish the MQTT message through the AWS IoT message broker.
type nonrec t = {mqttTopic : MQTTTopic.t;The MQTT topic of the message. You can use a string expression that includes variables ($variable.<variable-name>) and input values ($input.<input-name>.<path-to-datum>) as the topic string.
*)payload : Payload.t option;You can configure the action payload when you publish a message to an AWS IoT Core topic.
*)}val to_value :
t ->
[> `Structure of
(string
* [> `String of MQTTTopic.t
| `Structure of
(string * [> `Enum of string | `String of ContentExpression.t ])
list ])
list ]