def __init__(self, connIdentifier=None, protoFactory=None):
        AMP.__init__(self)
        assert connIdentifier != None or isinstance(connIdentifier, (str))
        self.connIdentifier = connIdentifier
        self.protoFactory = protoFactory
dataset/ETHPy150Open twisted/vertex/vertex/q2q.py/Q2QBootstrap.__init__/operator `is` -> `!=`