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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 reguid(zpool):
    '''
    Generates a new unique identifier for the pool

    .. warning::
        You must ensure that all devices in this pool are online and healthy
        before performing this action.

    zpool : string
        name of storage pool

    .. versionadded:: 2016.3.0

    CLI Example:

    .. code-block:: bash

        salt '*' zpool.reguid myzpool
    '''
    ## generate new GUID for pool
    res = __salt__['cmd.run_all'](
        __utils__['zfs.zpool_command'](
            command='reguid',
            target=zpool,
        ),
        python_shell=False,
    )

    return __utils__['zfs.parse_command_result'](res, 'reguided')