def __init__(self, host, port, deferred):
        self.host = host
        self.port = port
        self.deferred = deferred
Checks if key-val pair exists in item using various lookup types
dataset/ETHPy150Open marineam/nagcat/python/nagcat/plugins/query_ntp.py/NTPProtocol.__init__--crossover with--dataset/ETHPy150Open naiquevin/lookupy/lookupy/lookupy.py/lookup