public SearchRelatedItemsResponseItem withRelatedItemId(String relatedItemId) {
        setRelatedItemId(relatedItemId);
        return this;
    }
<p>
Unique identifier of a related item.
</p>

@param relatedItemId
       Unique identifier of a related item.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-connectcases/src/main/java/com/amazonaws/services/connectcases/model/SearchRelatedItemsResponseItem.java