Fetching node on ExternalObjectsDropped

We would like to perform several actions once the node is dropped on to the canvas. We wanted to fetch the node details on ExternalObjectsDropped. Similar to what we have when we do a Diagram.selection on click of the node. How can we achieve that?

The DiagramEvent.subject is the set of Parts that were dropped, so you can look at that collection.

Maybe something like e.subject.first().data.