How to attach toolbar on a window instance?
var winx = new dhx.Window({
 title: 'Test',
 modal: true,
 width: 800,
 height: 420
});
var toolbar = new dhx.Toolbar(null);
toolbar.data.parse([
     {
        type: "button",
        icon: "dxi-plus",
        value: "new"
    },
    {
        type: "button",
        icon: "dxi-folder-open",
        value: "close"
    },
]);
winx.attach(toolbar);
/// NOT WORKING
How to proper attach toolbar in window like in V5?
June 2, 2020 6:48 AM (Europe: Paris), June 1, 2020 9:48 PM (America: Los Angeles)