def __init__(self, *args, **kwargs):
        Node.__init__(self, *args, **kwargs)
        self._properties = None
Add another member to the array.
dataset/ETHPy150Open clips/pattern/pattern/graph/commonsense.py/Concept.__init__--crossover with--dataset/ETHPy150Open google/grr/grr/lib/rdfvalues/protodict.py/RDFValueArray.Append