# hrns is the list of hrns that should be linked to the subject from now on
# target_type would be e.g. 'user' in the 'slice' x 'researcher' example
def update_driver_relation (self, api, record_obj, hrns, target_type, relation_name):
# hrns is the list of hrns that should be linked to the subject from now on
# target_type would be e.g. 'user' in the 'slice' x 'researcher' example
def update_driver_relation (self, api, record_obj, hrns, target_type, relation_name):