public String getInstanceArn() {
        return this.instanceArn;
    }
<p>
The ARN of the IAM Identity Center instance under which the operation will be executed.
</p>

@return The ARN of the IAM Identity Center instance under which the operation will be executed.
aws-java-sdk-ssoadmin/src/main/java/com/amazonaws/services/ssoadmin/model/UpdateInstanceAccessControlAttributeConfigurationRequest.java