import objc
from Foundation import *
from AppKit import *

ACScriptSuperMenuTitle = 'Masking'
ACScriptMenuTitle = "Turn gradient into mask"

def main(image):
   
    canvas = NSDocumentController.sharedDocumentController().currentDocument().canvas()
    canvas.selectionMaskLayer().setCIImage_(image)
    canvas.startSelectionAnimation()
    canvas.setHasSelection_(True)
   
    return None