transformRotate does not exist?

`transformRotate ` - does not exist?

js:

```
var poly = turf.polygon([[[0,29],[3.5,29],[2.5,32],[0,29]]]);
var options = {pivot: [0, 25]};
var rotatedPoly = turf.transformRotate(poly, 10, options);
```

I want to rotate a polygon and cannot find method.

Is there any other way or rotating an `ImageSource` ?