def get_parent(self, update=False):  # pragma: no cover
        raise NotImplementedError
get full day data on 1-s interval 
dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node.get_parent--crossover with--dataset/ETHPy150Open cmorgan/trading-with-python/lib/interactivebrokers.py/Downloader.getIntradayData