<s> from pylearn2 . datasets . preprocessing import ZCA <EOL> from pylearn2 . utils import serial <EOL> from black_box_dataset import BlackBoxDataset <EOL> extra = BlackBoxDataset ( '<STR_LIT>' ) <EOL> zca = ZCA ( filter_bias = <NUM_LIT> ) <EOL> zca . fit ( extra . X ) <EOL> serial . save ( '<STR_LIT>' , zca ) </s>
