data class StackSetInstanceOperationPreferences(val failureToleranceCount: Int? = null, val failureTolerancePercentage: Int? = null, val maxConcurrentCount: Int? = null, val maxConcurrentPercentage: Int? = null, val regionConcurrencyType: String? = null, val regionOrders: List<String>? = null)
The concurrency type of deploying StackSets operations in Regions, could be in parallel or one Region at a time. Valid values are SEQUENTIAL and PARALLEL.