public GetContactListResult withTopics(java.util.Collection<Topic> topics) {
        setTopics(topics);
        return this;
    }
<p>
An interest group, theme, or label within a list. A contact list can have multiple topics.
</p>

@param topics
       An interest group, theme, or label within a list. A contact list can have multiple topics.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-sesv2/src/main/java/com/amazonaws/services/simpleemailv2/model/GetContactListResult.java