Document that QML VideoOutput is a subclass of Item

Here is the source code:
https://github.com/qt/qtmultimedia/blob/dev/src/multimediaquick/qquickvideooutput_p.h#L54
Clearly, VideoOutput is a subclass of Item. But it is not written down here:
https://doc.qt.io/qt-6/qml-qtmultimedia-videooutput.html
Neither it shows the full list of properties:
https://doc.qt.io/qt-6/qml-qtmultimedia-videooutput-members.html

It made me once think I have to render VideoOutput into a texture first (by layer of an Item) then manipulate the parent Item. But it turns out that VideoOutput itself is an Item. I can do whatever I do to an Item.