245
268
empty_value=None, filters=None, classes=None, summation=None,
246
269
auto=None, truncate=None, link_classes=None, wrap_list=False,
247
270
form_field=None, form_field_attributes=None,
250
274
self.classes = list(classes or getattr(self, "classes", []))
251
275
super(Column, self).__init__()