public java.util.Map<String, IPSet> getRuleVariables() {
        return ruleVariables;
    }
<p>
The IPv4 or IPv6 addresses in CIDR notation to use for the Suricata <code>HOME_NET</code> variable. If your
firewall uses an inspection VPC, you might want to override the <code>HOME_NET</code> variable with the CIDRs of
your home networks. If you don't override <code>HOME_NET</code> with your own CIDRs, Network Firewall by default
uses the CIDR of your inspection VPC.
</p>

@return The IPv4 or IPv6 addresses in CIDR notation to use for the Suricata <code>HOME_NET</code> variable. If
        your firewall uses an inspection VPC, you might want to override the <code>HOME_NET</code> variable with
        the CIDRs of your home networks. If you don't override <code>HOME_NET</code> with your own CIDRs, Network
        Firewall by default uses the CIDR of your inspection VPC.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/PolicyVariables.java