def METHOD_NAME():
    """Get the location of a possible new grid proxy file"""
    for envVar in ["GRID_PROXY_FILE", "X509_USER_PROXY"]:
        if envVar in os.environ:
            proxyPath = os.path.realpath(os.environ[envVar])
            return proxyPath
    # /tmp/x509up_u<uid>
    proxyName = "x509up_u%d" % os.getuid()
    return f"/tmp/{proxyName}"