How Can i use QWindow's setIcon public method in Window type in Qml?

[madoodia]

hi guys
i searched but all topics was about setIcon in C++, i want to know that is there any way to set icon for a window in QML file?
for example in a Window type?
i know how using signals of QWindow in Qml but i don't know how to use public methods of QWindow
http://qt-project.org/doc/qt-5/qwindow.html#setIcon

thanks in advance