@abc.abstractmethod
    def update_subnet(self, request):
introspects the database for functions
dataset/ETHPy150Open openstack/neutron/neutron/ipam/driver.py/Pool.update_subnet--crossover with--dataset/ETHPy150Open dvdmgl/django-pg-fts/pg_fts/introspection.py/PgFTSIntrospection.get_functions_list