After rotating event

Hello everyone,
As I knew this code is rotating function.

       goJs(go.TextBlock, number.toString(), { font: "10pt Verdana, sans-serif" },
         new go.Binding("angle", "angle", function (n) {
            console.log(n);
            return -n;
        }))

However, it fired anytime we rotate.
Does anyone tell me a function that is called after finish rotating?
Thanks in advanced

The “PartRotated” DiagramEvent: DiagramEvent | GoJS API