human
Complete the below
def flocker_volume_options(cls):

    ''''A class decorator to add ``VolumeService`` specific command line options to
    flocker commands.
    :param cls: The class to decorate.
    :return: The decorated class.'
    '''
 ... Give me a the Python code you requested?
assistant
#Here is the Python code you requested.
    original_parameters = getattr(cls, 'optParameters', [])
    cls.optParameters = (original_parameters + [['config', None, DEFAULT_CONFIG_PATH.path, 'The    path    to    the    Flocker    volume    configuration    file,    containing    the    node    ID    of    the    Flocker    volume    service    on    this    node.    This    file    will    be    created    if    it    does    not    already    exist.'], ['pool', None, FLOCKER_POOL, 'The    ZFS    pool    to    use    for    volumes.'], ['mountpoint', None, FLOCKER_MOUNTPOINT.path, 'The    path    where    ZFS    filesystems    will    be    mounted.']])
    original_postOptions = cls.postOptions
    def postOptions(self):
        self['config'] = FilePath(self['config'])
        original_postOptions(self)
    cls.postOptions = postOptions
    return cls