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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 get_proxy_for_requests(self, url):
 """ Get proxy configuration for a given URL, in a form ready to use with the Requests library. :param str url: The URL for which to obtain proxy configuration. :returns: Proxy configuration in a form recognized by Requests, for use with the ``proxies`` parameter. :rtype: dict :raises ProxyConfigExhaustedError: If no proxy is configured or available, and 'DIRECT' is not configured as a fallback. """

        proxy = self.get_proxy(url)
        if not proxy:
            raise ProxyConfigExhaustedError(url)
        return proxy_parameter_for_requests(proxy)