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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 get_indexable(cls):
 """Returns the queryset of ids of all things to be indexed. Defaults to:: cls.get_model().objects.order_by('id').values_list( 'id', flat=True) :returns: iterable of ids of objects to be indexed """

        model = cls.get_model()
        return model.objects.order_by('id').values_list('id', flat=True)