public void setTargetRegions(java.util.Collection<Region> targetRegions) {
        if (targetRegions == null) {
            this.targetRegions = null;
            return;
        }

        this.targetRegions = new java.util.ArrayList<Region>(targetRegions);
    }
<p>
Target Amazon Web Services Regions for the enabled control.
</p>

@param targetRegions
       Target Amazon Web Services Regions for the enabled control.
aws-java-sdk-controltower/src/main/java/com/amazonaws/services/controltower/model/EnabledControlDetails.java