1. @DomName('CanvasRenderingContext2D.createPattern')
  2. @DocsEditable()
CanvasPattern createPattern(Object image, String repetitionType)

Source 

@DomName('CanvasRenderingContext2D.createPattern')
@DocsEditable()
CanvasPattern createPattern(Object image, String repetitionType) =>
    _blink.BlinkCanvasRenderingContext2D.instance
        .createPattern_Callback_2_(this, image, repetitionType);