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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 validate_argmax_with_skipna(skipna, args, kwargs):
 """ If 'Series.argmax' is called via the 'numpy' library, the third parameter in its signature is 'out', which takes either an ndarray or 'None', so check if the 'skipna' parameter is either an instance of ndarray or is None, since 'skipna' itself should be a boolean """


    skipna, args = process_skipna(skipna, args)
    validate_argmax(args, kwargs)
    return skipna