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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def show(self):
 """ Display the visualizer. """

        self.iren.Initialize()
        self.ren_win.SetSize(800, 800)
        self.ren_win.SetWindowName(self.title)
        self.ren_win.Render()
        self.iren.Start()