def init_relation(self, models, relation):
        raise NotImplementedError
The first time stamp is created here
dataset/ETHPy150Open sdispater/orator/orator/orm/relations/relation.py/Relation.init_relation--crossover with--dataset/ETHPy150Open uwdata/termite-data-server/web2py/gluon/contrib/timecollect.py/TimeCollector.__init__