public String getAttribute() {
        return this.attribute;
    }
<p>
An enum type representing the allowed attribute types for an IP condition.
</p>

@return An enum type representing the allowed attribute types for an IP condition.
@see IngressIpv4Attribute
aws-java-sdk-mailmanager/src/main/java/com/amazonaws/services/mailmanager/model/IngressIpToEvaluate.java