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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 positive_integer(value):
 """Ensure that the provided value is a positive integer. Parameters value: int The number to evaluate Returns ------- value: int Returns a positive integer """

    try:
        value = int(value)
    except Exception:
        raise argparse.ArgumentTypeError('Invalid int value: \'{}\''.format(value))
    if value < 0:
        raise argparse.ArgumentTypeError('Invalid positive int value: \'{}\''.format(value))
    return value