def __init__(self, output_info=None):
        if output_info is None:
            output_info = utils.PathInfo(os.devnull)
        # We check the argument here to fail fast and help the user locate
        # the source of the issue more quickly.
        assert isinstance(output_info, utils.StreamInfo)
        self.output_info = output_info
Fetch the sequence of twitter.User instances, one for each friend.
dataset/ETHPy150Open cjerdonek/open-rcv/openrcv/parsing.py/BLTParser.__init__--crossover with--dataset/ETHPy150Open livid/v2ex/twitter/twitter.py/Api.GetFriends