public String getSnsTopic() {
        return this.snsTopic;
    }
<p>
The Amazon resource name (ARN) of the Amazon Simple Notification Service SNS topic that's used to record changes
to the managed rule group. You can subscribe to the SNS topic to receive notifications when the managed rule
group is modified, such as for new versions and for version expiration. For more information, see the <a
href="https://docs.aws.amazon.com/sns/latest/dg/welcome.html">Amazon Simple Notification Service Developer
Guide.</a>.
</p>

@return The Amazon resource name (ARN) of the Amazon Simple Notification Service SNS topic that's used to record
        changes to the managed rule group. You can subscribe to the SNS topic to receive notifications when the
        managed rule group is modified, such as for new versions and for version expiration. For more
        information, see the <a href="https://docs.aws.amazon.com/sns/latest/dg/welcome.html">Amazon Simple
        Notification Service Developer Guide.</a>.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/RuleGroupResponse.java