twitter() -> None
{
    out = source(function="ML.examples.twitter.source", push=1); 
    model = train(in=out, function="ML.examples.twitter.train_function", num_features=1, min_window_size=1, max_window_size=10, step_size=1);
    z = predict(in=out, model=model, function="ML.examples.twitter.predict_function", num_features=1);
    plot(in=out, function="ML.examples.twitter.plot", model=model, num_features=1, min_window_size=1, max_window_size=10, step_size=1);
}
