in scripts/data_preparation/prepare_cityscapes.py [0:0]
def _get_meta():
num_stuff = sum(1 for lbl in cs_labels if 0 <= lbl.trainId < 255 and not lbl.hasInstances)
num_thing = sum(1 for lbl in cs_labels if 0 <= lbl.trainId < 255 and lbl.hasInstances)
return num_stuff, num_thing