def __init__(self, transport):
        self.transport = transport
        self.lostReason = None
True if the token text is that of an initial.
dataset/ETHPy150Open twisted/twisted/twisted/web/test/test_proxy.py/DummyChannel.__init__--crossover with--dataset/ETHPy150Open reefeed/wanish/wanish/tokenizers.py/PunktToken.is_initial