human
I wrote the below code

    original_init = cls.__init__
    original_postOptions = cls.postOptions
    def __init__(self, *args, **kwargs):
        'Set    the    default    verbosity    to    `0`\n\n                                Calls    the    original    ``cls.__init__``    method    finally.\n\n                                :param    sys_module:    An    optional    ``sys``    like    module    for    use    in\n                                                testing.    Defaults    to    ``sys``.\n                                '
        self._sys_module = kwargs.pop('sys_module', sys)
        self['verbosity'] = 0
        self['logfile'] = None
        self['journald'] = False
        original_init(self, *args, **kwargs)
    cls.__init__ = __init__
    def opt_version(self):
        "Print    the    program's    version    and    exit."
        self._sys_module.stdout.write((__version__.encode('utf-8') + '\n'))
        raise SystemExit(0)
    cls.opt_version = opt_version
    def opt_verbose(self):
        'Turn    on    verbose    logging.'
        self['verbosity'] += 1
    cls.opt_verbose = opt_verbose
    cls.opt_v = opt_verbose
    def opt_logfile(self, logfile_path):
        '\n                                Log    to    a    file.    Log    is    written    to    ``stdout``    by    default.    The    logfile\n                                directory    is    created    if    it    does    not    already    exist.\n                                '
        self['logfile'] = logfile_path
    opt_logfile.__doc__ = '    '.join(opt_logfile.__doc__.split())
    cls.opt_logfile = opt_logfile
    def opt_journald(self):
        '\n                                Log    to    journald.\n                                '
        if (JournaldDestination is None):
            raise usage.UsageError(('Journald    unavailable    on    this    machine:    ' + _missing_journald_reason))
        self['journald'] = True
    cls.opt_journald = opt_journald
    def postOptions(self):
        if self['journald']:
           ...

What's a good function header?

=====
Write me a Python program to print    the    program's    version    and    exit?
assistant
#Here is Python program to print    the    program's    version    and    exit.

def flocker_standard_options(cls):