@property
    def org_name(self):
        return self._org_name
Checks if the newsletter is valid. A newsletter needs to have a
dataset/ETHPy150Open treasure-data/td-client-python/tdclient/schedule_model.py/Schedule.org_name--crossover with--dataset/ETHPy150Open allink/pennyblack/pennyblack/models/newsletter.py/Newsletter.is_valid