# plcapi works by changes, compute what needs to be added/deleted
def update_relation (self, subject_type, target_type, relation_name, subject_id, target_ids):
# hard-wire the code for slice/user for now, could be smarter if needed
# plcapi works by changes, compute what needs to be added/deleted
def update_relation (self, subject_type, target_type, relation_name, subject_id, target_ids):
# hard-wire the code for slice/user for now, could be smarter if needed