def _workflow_changed(self, oldwf, newwf):
        if newwf is not None:
            newwf.parent = self
Get instance of Model class by id.
dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/driver.py/Driver._workflow_changed--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/Model.get_by_id