def load_child_keys(self):
        raise TreeWidgetError("virtual function.  Implement in subclass")
Create a single new datapoint for this datastream.
dataset/ETHPy150Open AnyMesh/anyMesh-Python/example/urwid/treetools.py/ParentNode.load_child_keys--crossover with--dataset/ETHPy150Open xively/xively-python/xively/managers.py/DatapointsManager.create