3. The method of claim 1 , wherein obtaining a transformation document that includes declarative statements comprises obtaining a transformation document that includes transforms, each transform indicating an action to take with respect to a node of the copy.
3. The method of claim 1 , wherein obtaining a transformation document that includes declarative statements comprises obtaining a transformation document that includes transforms, each transform indicating an action to take with respect to a node of the copy. 4. The method of claim 3 , wherein obtaining a transformation document that includes transforms comprises obtaining transforms that indicate one or more of removing a node along with its children, if any, removing all nodes under a parent node, inserting the node under the parent node, setting one or more attributes of the node, and removing one or more attributes of the node.