def __eq__(self, other):
return (self.cell == other.cell and<EOL>(sorted(self._synapses, key=lambda x: x._ordinal) ==<EOL>sorted(other._synapses, key=lambda x: x._ordinal)))<EOL>
Explicitly implement this for unit testing. The flatIdx is not designed
        to be consistent after serialize / deserialize, and the synapses might not
        enumerate in the same order.