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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 size_changed(self, settings, key, user_data):
 """If the gconf var window_height or window_width are changed, this method will be called and will call the resize function in guake. """

        RectCalculator.set_final_window_rect(self.settings, self.guake.window)