               ...
                class MyListing(Listing):
                    ...
                    columns = ModelColumns(
                        MyModel,  # will automatically add all columns based on model's attributes (let's say it has first_name,last_name,age,address attributes)
                        Column("a_column_to_add_or_override1", parameters....),
                        Column("a_column_to_add_or_override2", parameters....),
                        ...
                        )
       