def get_auth_from_file():
    try:
        with open(TOKEN_FILE) as token_file:
            auth_ref = json.load(token_file)

        return auth_ref
    except __HOLE__ as e:
        if e.errno == errno.ENOENT:
            return None
        status_err(e)
dataset/ETHPy150Open rcbops/rpc-openstack/maas/plugins/maas_common.py/get_auth_from_file