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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 main(args=None):
 """ Create a private key and a certificate and write them to a file. """

    if args is None:
        args = sys.argv[1:]

    o = Options()
    try:
        o.parseOptions(args)
    except usage.UsageError, e:
        raise SystemExit(str(e))
    else:
        return createSSLCertificate(o)