public RuleGroupResponse withRuleGroupId(String ruleGroupId) {
        setRuleGroupId(ruleGroupId);
        return this;
    }
<p>
The unique identifier for the rule group.
</p>

@param ruleGroupId
       The unique identifier for the rule group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/RuleGroupResponse.java