def pull(cls, tokenizer, limit=None):
dout = File.new_dir(os.path.join('dataset', cls.__name__.lower()),
ensure_dir=True)
draw = os.path.join(dout, 'raw')
dann = os.path.join(dout, 'ann')
if not os.path.isdir(draw):
os.makedirs(draw)
cls.download(draw)
if not os.path.isdir(dann):
os.makedirs(dann)
anns = cls.annotate(tokenizer, draw, dann, limit=limit)
return anns
