public DescribeChangeSetResult withRootChangeSetId(String rootChangeSetId) {
        setRootChangeSetId(rootChangeSetId);
        return this;
    }
<p>
Specifies the change set ID of the root change set in the current nested change set hierarchy.
</p>

@param rootChangeSetId
       Specifies the change set ID of the root change set in the current nested change set hierarchy.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/DescribeChangeSetResult.java