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_(this, angle);