public Document withContentReference(ContentReference contentReference) {
        setContentReference(contentReference);
        return this;
    }
<p>
A reference to the content resource.
</p>

@param contentReference
       A reference to the content resource.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-connectwisdom/src/main/java/com/amazonaws/services/connectwisdom/model/Document.java