public PartialMatch withReference(String reference) {
        setReference(reference);
        return this;
    }
<p>
The reference rule from the primary security group of the Firewall Manager policy.
</p>

@param reference
       The reference rule from the primary security group of the Firewall Manager policy.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-fms/src/main/java/com/amazonaws/services/fms/model/PartialMatch.java