1. DomName('CanvasRenderingContext2D.rotate')
  2. DocsEditable()
void rotate(num angle)

Source 

@DomName('CanvasRenderingContext2D.rotate')
@DocsEditable()
void rotate(num angle) => _blink.BlinkCanvasRenderingContext2D.instance.rotate_Callback_1_(unwrap_jso(this), angle);