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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 handler(ca_file=None):
 """Returns an HTTP request handler configured with the given ca_file."""


    def request(url, message, **kwargs):
        scheme, host, port, path = spliturl(url)

        if scheme != "https": 
            ValueError("unsupported scheme: %s" % scheme)

        connection = HTTPSConnection(host, port, ca_file)
        try:
            body = message.get('body', "")
            headers = dict(message.get('headers', []))
            connection.request(message['method'], path, body, headers)
            response = connection.getresponse()
        finally:
            connection.close()

        return {
            'status': response.status,
            'reason': response.reason,
            'headers': response.getheaders(),
            'body': BytesIO(response.read())
        }

    return request