Persist the request metadata in self._vcr_request

def request(self, method, url, body=None, headers=None, *args, **kwargs):
        '''Persist the request metadata in self._vcr_request'''
        self._vcr_request = Request(
            method=method,
            uri=self._uri(url),
            body=body,
            headers=headers or {}
        )
        log.debug('Got {}'.format(self._vcr_request))

        # Note: The request may not actually be finished at this point, so
        # I'm not sending the actual request until getresponse().  This
        # allows me to compare the entire length of the response to see if it
        # exists in the cassette.

        self._sock = VCRFakeSocket()