def METHOD_NAME():
    currdir = os.path.split(__file__)[0]
    path = os.path.join(currdir, "..", "apps", "files", "test-v0.ipynb")
    with open(path, "r") as fh:
        nb = read(fh, current_nbformat)
    nb = MetadataValidatorV1().upgrade_notebook_metadata(nb)