def log_line() -> str:
    """
    A simple reuseable log line string.
    """
    line = (
        '77.179.66.156 - - [07/Dec/2016:10:34:43 +0100] "GET /favicon.ico HTTP/1.1" '
        '404 571 "http://localhost:8080/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_0) '
        'AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.98 Safari/537.36"'
    )
    return line