def _get_last_change(self):
return self.__last_change<EOL>
Getter method for last_change, mapped from YANG variable /interfaces/interface/subinterfaces/subinterface/state/last_change (yang:timeticks)

    YANG Description: Date and time of the last state change of the interface
(e.g., up-to-down transition).   This corresponds to the
ifLastChange object in the standard interface MIB.