def _get_period(self):
return self.__period<EOL>
Getter method for period, mapped from YANG variable /network_instances/network_instance/protocols/protocol/ospfv2/areas/area/lsdb/lsa_types/lsa_type/lsas/lsa/opaque_lsa/grace_lsa/tlvs/tlv/state/period (uint32)

    YANG Description: The number of seconds that the router's neighbors should advertise
the local system as fully adjacent regardless of database
synchronization state