def headers(self):
        h = [
            DataTablesColumn(_("Affected User"), sortable=False),
            DataTablesColumn(_("Modified by User"), sortable=False),
            DataTablesColumn(_("Action"), prop_name='action'),
            DataTablesColumn(_("Via"), prop_name='changed_via'),
            DataTablesColumn(_("Changes"), sortable=False),
            DataTablesColumn(_("Change Message"), sortable=False),
            DataTablesColumn(_("Timestamp"), prop_name='changed_at'),
        ]

        return DataTablesHeader(*h)