def _get_helper_only(self):
return self.__helper_only<EOL>
Getter method for helper_only, mapped from YANG variable /network_instances/network_instance/protocols/protocol/ospfv2/global/graceful_restart/config/helper_only (boolean)

    YANG Description: Operate graceful-restart only in helper mode. When this leaf
is set to true, the local system does not use Grace-LSAs to
indicate that it is restarting, but will accept Grace-LSAs
from remote systems, and suppress withdrawl of adjacencies
of the system for the grace period specified