@property
    def plan(self):
        return self._plan
See IterOpen, but raises if multiple or no matches found.
dataset/ETHPy150Open treasure-data/td-client-python/tdclient/account_model.py/Account.plan--crossover with--dataset/ETHPy150Open google/openhtf/openhtf/plugs/usb/local_usb.py/LibUsbHandle.Open