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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 disable_buttons(self):
 """ Function disables buttons """

        self.main_btn.set_sensitive(False)
        self.back_btn.hide()
        self.info_label.set_label('<span color="#FFA500">In progress...</span>')
        self.disable_close_window()
        if self.link is not None:
            self.link.hide()