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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, ):
 """Reimplementation of show to update all currently available JB_MainWindows :returns: None :rtype: None :raises: None """

        wins = set(JB_MainWindow.instances())
        widgets = set(self.get_widgets())
        for w in wins - widgets:
            self.add_widget(w)
        super(JB_WindowToolTip, self).show()