def filter(self, table, roles, filter_string):
        q = filter_string.lower()
        return [role for role in roles
                if q in role.name.lower()]
Naive case-insensitive search
dataset/ETHPy150Open Havate/havate-openstack/proto-build/gui/horizon/Horizon_GUI/openstack_dashboard/dashboards/admin/roles/tables.py/RoleFilterAction.filter