public void setIamUserArn(String iamUserArn) {
        this.iamUserArn = iamUserArn;
    }
<p>
The user's IAM ARN.
</p>

@param iamUserArn
       The user's IAM ARN.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/CreateUserProfileResult.java