def __init__(self, ins=sys.stdin, out=None):
        self._ins = ins
        if not out:
            out = OutputStream(sys.stdout)
        self._out = out
Returns a user given its id, name, or hostmask.
dataset/ETHPy150Open biicode/client/shell/userio.py/UserIO.__init__--crossover with--dataset/ETHPy150Open ProgVal/Limnoria/src/ircdb.py/UsersDictionary.getUser