code: def allow_buttons(self, message="", link=True, back=True):
          
          self.info_label.set_label(message)
          self.allow_close_window()
          if link and self.link is not None:
              self.link.set_sensitive(True)
              self.link.show_all()
          if back:
              self.back_btn.show()
          self.main_btn.set_sensitive(True)
docs: Function allows buttons