def for_moderator(self, user):
        return self.get_queryset().for_moderator(user)
Clear the history buffer. Subclasses *must* provide an
dataset/ETHPy150Open ExCiteS/geokey/geokey/contributions/managers.py/ObservationManager.for_moderator--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/grizzled/grizzled/history.py/History.clear_history