

def participate(experiment, alternatives, client_id, force=None, traffic_fraction=None, prefetch=False, datetime=None, redis=None):
    exp = Experiment.find_or_create(experiment, alternatives, traffic_fraction=alternatives, redis=redis)
    alt = None
    if (force and (force in alternatives)):
        alt = Alternative(force, exp, redis=redis)
    elif (not cfg.get('enabled', True)):
        alt = exp.control
    elif (exp.winner is not None):
        alt = exp.winner
    else:
        client = Client(client_id, redis=redis)
        alt = exp.get_alternative(client, dt=datetime, prefetch=prefetch)
    return alt

dataset/ETHPy150Open seatgeek/sixpack/sixpack/api.py participate/VarMisuse@46/59 `traffic_fraction`->`alternatives`