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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 process_request(self, request):
 """ Reconstitute the full JWT and add a new cookie on the request object. """

        use_jwt_cookie_requested = request.META.get(USE_JWT_COOKIE_HEADER)
        header_payload_cookie = request.COOKIES.get(jwt_cookie_header_payload_name())
        signature_cookie = request.COOKIES.get(jwt_cookie_signature_name())

        if not use_jwt_cookie_requested:
            metric_value = 'not-requested'
        elif header_payload_cookie and signature_cookie:
            # Reconstitute JWT auth cookie if split cookies are available and jwt cookie
            # authentication was requested by the client.
            request.COOKIES[jwt_cookie_name()] = '{}{}{}'.format(
                header_payload_cookie,
                JWT_DELIMITER,
                signature_cookie,
            )
            metric_value = 'success'
        elif header_payload_cookie or signature_cookie:
            # Log unexpected case of only finding one cookie.
            if not header_payload_cookie:
                log_message, metric_value = self._get_missing_cookie_message_and_metric(
                    jwt_cookie_header_payload_name()
                )
            if not signature_cookie:
                log_message, metric_value = self._get_missing_cookie_message_and_metric(
                    jwt_cookie_signature_name()
                )
            log.warning(log_message)
        else:
            metric_value = 'missing-both'

        monitoring.set_custom_metric('request_jwt_cookie', metric_value)