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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 cleanup(self):
 """This is called when KeepAlive feature is used, it resets the connection in order for it to be able to handle receiving another request on the same connection."""

        self.parser = None
        self.request = None
        self.url = None
        self.headers = None
        self._request_handler_task = None
        self._request_stream_task = None
        self._total_request_size = 0
        self._is_stream_handler = False