migrations.AddField(
            model_name='country',
            name='iso_status',
            field=models.CharField(default=b'UND', max_length=3, choices=[('OFF', 'Officially assigned'), ('INR', 'Indeterminately reserved'), ('EXR', 'Exceptionally reserved'), ('TRR', 'Transitionally reserved'), ('FRU', 'Formerly used'), ('UND', 'Unassigned')]),