Why does the Clipboard interface extends EventTarget?

[gfox1984]

According the draft, the Clipboard interface extends EventsTarget: https://w3c.github.io/clipboard-apis/#clipboard-interface

However, there's no definition of the events supported by the clipboard itself. All examples show events being attached to the document (cut, copy, paste), and there's no indication regarding the "clipboardchange" event (does it fire on the window?).

Did I miss something?