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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 on_deckbuilder(self, *args):
 """Bind my deckbuilder to update my ``scroll``, and my ``scroll`` to update my deckbuilder. """

        if self.deckbuilder is None:
            return
        att = 'deck_{}_hint_offsets'.format(
            'x' if self.orientation == 'horizontal' else 'y'
        )
        offs = getattr(self.deckbuilder, att)
        if len(offs) <= self.deckidx:
            Clock.schedule_once(self.on_deckbuilder, 0)
            return
        self.bind(scroll=self.handle_scroll)
        self.deckbuilder.bind(**{att: self.upd_scroll})
        self.upd_scroll()
        self.deckbuilder._trigger_layout()