def showturtle(self):
        self.pen(shown=True)
saveToPNG(filename: str) -> filename or vtkUnsignedCharArray
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/site-packages/turtle.py/TPen.showturtle--crossover with--dataset/ETHPy150Open VisTrails/VisTrails/contrib/titan/vtkviewcell.py/QVTKViewWidget.saveToPNG