<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def set_request_line(self, method, url, version):
 """ Sets the request line on the responder. """

        self.parsed_request = (method, url, version)
        self.request = {
            'method': method,
            'url': url,
            'version': version
        }