QAbstractListModel TextArea property text: display, what does it mean?

[Uniformed6525]

Hello,

I'm trying to understand the QAbstractListModel example found here:
https://doc.qt.io/qtforpython-6.2/examples/example_declarative__editingmodel.html

The MovingRectangle.qml file contains a TextArea, whose text property is set to "display":

TextArea {
        id: zone
        anchors.centerIn: parent
        text: display 
        /*    ^^^^^^^ */
        onTextChanged: model.edit = text
    }

From my understanding, it enables model.py to edit the text contents of the TextArea. However, I did not manage to find much information regarding this "text: display", aside from (probably) the Qt::DisplayRole...

Can someone please enlighten me as to what is this "display"? Is it a variable? A keyword?

Thanks in advance for any responses.