QtQuick Dialog with Yes / No / Cancel buttons

I thought that this should have been a super common use case:

import QtQuick 2.15import QtQuick.Controls 2.15import QtQuick.Controls.Universal 2.15import QtQuick.DialogsDialog {    id: rootItem    title: qsTr("Save unsaved changes?")    standardButtons: Dialog.Yes | Dialog.No | Dialog.Cancel    modal: true    Component.onCompleted: {        visible = false;    }    onAccepted: {        // Unsaved changes accepted    }    onRejected: {        // Unsaved changes rejected    }}

How can I make a difference between user clicking on No and Cancel ? The documentation seems to be very poor on this. Yes means "accepted" and both No and Cancel means "rejected". In my application's state machine I want to know how the user rejected.

https://doc.qt.io/qt-6/qml-qtquick-controls-dialog.html

Dialog.No   A "No" button defined with the NoRole. 

What NoRole ? What should I do with this undocumented NoRole ?

I feel stupid.