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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 authenticate_with_certificate(reactor, base_url, client_cert, client_key, ca_cert):
 """ See ``authenticate_with_certificate_chain``. :param pem.Certificate client_cert: The client certificate to use. """

    return authenticate_with_certificate_chain(
        reactor, base_url, [client_cert], client_key, ca_cert,
    )