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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 show_ver(**kwargs):
    '''
    Shortcut to run `show version` on the NX-OS device.

    .. code-block:: bash

        salt '*' nxos.cmd show_ver
    '''
    command = 'show version'
    info = ''
    info = show(command, **kwargs)
    if isinstance(info, list):
        info = info[0]
    return info