@property
    def upstream_list(self):
        return [self.dag.get_task(tid) for tid in self._upstream_task_ids]
This checks if a dictionary can be saved natively as HDF5 groups.
dataset/ETHPy150Open airbnb/airflow/airflow/models.py/BaseOperator.upstream_list--crossover with--dataset/ETHPy150Open uchicago-cs/deepdish/deepdish/io/hdf5io.py/_dict_native_ok