def METHOD_NAME(self, xy, viewWidget, image, parentTransformNode=None):
    xyPoint = qt.QPoint(xy[0], xy[1])
    ijkVector = self.scriptedEffect.METHOD_NAME(xyPoint, viewWidget, image, parentTransformNode)
    return [int(ijkVector.x()), int(ijkVector.y()), int(ijkVector.z())]