def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def query_vpp_config(self):
        ds = list(self._test.vapi.vpp.details_iter(
            self._test.vapi.ip_path_mtu_get))

        for d in ds:
            if self.nh == str(d.pmtu.nh) \
               and self.table_id == d.pmtu.table_id \
               and self.pmtu == d.pmtu.path_mtu:
                return True
        return False