def save_to_file(self, filename):
        with open(filename, 'w') as fh:
            for record in self._records:
                fh.write(unicode(record))
Return whether ``cls`` is a subclass of ``class_info``.
dataset/ETHPy150Open enthought/traits/traits/util/event_tracer.py/RecordContainer.save_to_file--crossover with--dataset/ETHPy150Open django-nose/django-nose/django_nose/utils.py/is_subclass_at_all