public void setTargetIdentifier(String targetIdentifier) {
        this.targetIdentifier = targetIdentifier;
    }
<p>
The ARN of the target on which the baseline will be enabled. Only OUs are supported as targets.
</p>

@param targetIdentifier
       The ARN of the target on which the baseline will be enabled. Only OUs are supported as targets.
aws-java-sdk-controltower/src/main/java/com/amazonaws/services/controltower/model/EnableBaselineRequest.java