def __eq__(self, other):
    return (isinstance(other, self.__class__) and
            self.SerializeToString() == other.SerializeToString())
Verify that a non-existent element in a slab cannot be fetched.
dataset/ETHPy150Open google/grr/grr/lib/rdfvalues/flows.py/FlowState.__eq__--crossover with--dataset/ETHPy150Open MapQuest/mapquest-osm-server/src/python/tests/test_dsmembase.py/test_datastore_failed_slab_fetch