def METHOD_NAME():
    Flow.load_config('yaml/flow-legacy-syntax.yml')
    Flow.load_config('yaml/flow-v1-syntax.yml')
    # this should fallback to v1
    Flow.load_config('yaml/flow-v1.0-syntax.yml')
    with pytest.raises(BadYAMLVersion):
        Flow.load_config('yaml/flow-v99-syntax.yml')