def add_schedule(self, sched):
        self.schedules += [sched]
Get a mapping of all groups to their permissions on a package
dataset/ETHPy150Open pascanur/GroundHog/groundhog/layers/basic.py/Container.add_schedule--crossover with--dataset/ETHPy150Open mathcamp/pypicloud/pypicloud/access/base.py/IAccessBackend.group_permissions