def check_json_round_trip(spec):
json_text = spec.to_json()
spec_from_json = Spec.from_json(json_text)
assert spec.eq_dag(spec_from_json)
def check_yaml_round_trip(spec):
yaml_text = spec.to_yaml()
spec_from_yaml = Spec.from_yaml(yaml_text)
assert spec.eq_dag(spec_from_yaml)
