@property
    def idref(self):
        return self._idref
Creates and starts a transition if one is not already open.
dataset/ETHPy150Open STIXProject/python-stix/stix/ttp/infrastructure.py/Infrastructure.idref--crossover with--dataset/ETHPy150Open chop-dbhi/django-sts/sts/models.py/System.start_transition