["python","django","sorting"]
django order_by query set, ascending and descending

How can I order by descending my query set in django by date? Reserved.objects.all().filter(client=client_id).order_by('check_in') I just want to filter from descending all the Reserved by check_in date.
Reserved.objects.filter(client=client_id).order_by('-check_in') Notice the - before check_in. - before column name mean "descending order", while without - mean "ascending". Django Documentation