def filter(self, table, data, filter_string):
        raise NotImplementedError("The filter method has not been "
                                  "implemented by %s." % self.__class__)
Extract a portion of a bit string. Similar to substr().
dataset/ETHPy150Open Havate/havate-openstack/proto-build/gui/horizon/Horizon_GUI/horizon/tables/actions.py/FilterAction.filter--crossover with--dataset/ETHPy150Open SawdustSoftware/simpleflake/simpleflake/simpleflake.py/extract_bits