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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def install(zone, nodataset=False, brand_opts=None):
    '''
    Install the specified zone from the system.

    zone : string
        name of the zone
    nodataset : boolean
        do not create a ZFS file system
    brand_opts : string
        brand specific options to pass

    CLI Example:

    .. code-block:: bash

        salt '*' zoneadm.install dolores
        salt '*' zoneadm.install teddy True
    '''
    ret = {'status': True}

    ## install zone
    res = __salt__['cmd.run_all']('zoneadm -z {zone} install{nodataset}{brand_opts}'.format(
        zone=zone,
        nodataset=' -x nodataset' if nodataset else '',
        brand_opts=' {0}'.format(brand_opts) if brand_opts else '',
    ))
    ret['status'] = res['retcode'] == 0
    ret['message'] = res['stdout'] if ret['status'] else res['stderr']
    ret['message'] = ret['message'].replace('zoneadm: ', '')
    if ret['message'] == '':
        del ret['message']

    return ret