public void setManagedExecution(ManagedExecution managedExecution) {
        this.managedExecution = managedExecution;
    }
<p>
Describes whether StackSets performs non-conflicting operations concurrently and queues conflicting operations.
</p>

@param managedExecution
       Describes whether StackSets performs non-conflicting operations concurrently and queues conflicting
       operations.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/StackSetSummary.java