from sklearn.datasets import fetch_openml from flaml import AutoML X_train, y_train = fetch_openml(name="credit-g", return_X_y=True, as_frame=False) # not a real learning to rank dataaset groups = [200] * 4 + [100] * 2 # group counts automl = AutoML() automl.fit( X_train, y_train, groups=groups, task="rank", time_budget=1, # in seconds )