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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_queryset(self):
 """created the base queryset object for the serializer limited to users within the authors groups and having `is_staff` :return: `django.db.models.QuerySet` """

        author_filter = getattr(settings, "BULBS_AUTHOR_FILTER", {"is_staff": True})
        queryset = self.model.objects.filter(**author_filter).distinct()
        return queryset