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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 reset_bars(self):
 """ Set all progress bars to zero and hide them. """

        self.url_progressbar.reset()
        self.url_progressbar.show([0, 0])

        self.issn_progressbar.reset()

        self.urlbox_error.reset()
        self.issnbox_error.reset()

        InputController._reset_typeaheads()