def test():
spans = generate_spans()
gold_bio = generate_bio(spans)
res = convert_iobes_to_bio(convert_bio_to_iobes(gold_bio))
assert res == gold_bio
def test():
spans = generate_spans()
iobes = generate_iobes(spans)
gold_bio = generate_bio(spans)
bio = convert_iobes_to_bio(iobes)
assert bio == gold_bio