An accepted message that is scheduled for later delivery.
Fields
message_id(required)status(required)scheduled_at(required): The scheduled delivery time in ISO 8601 formatsandbox(optional): Present when the project uses Sandbox deliverysandbox_result(optional): The simulated delivery result. Present when the project uses Sandbox delivery
Absent fields are :unset; nil is JSON null. extra holds response fields that this version of the SDK does not know.