code: def request(self, url, method="GET", params=None, headers=None):
          
          params = params or {}
          headers = headers or {}
  
          logger.debug("URL: %s", url)
          logger.debug("Method: %s", method)
          logger.debug("Headers: %s", headers)
          logger.debug("Params: %s", params)
          
          response, content = self.client().request(url, method, headers=headers,
              body=urllib.urlencode(params))
          
          content = smart_unicode(content)
  
          logger.debug("Status: %s", response['status'])
          logger.debug("Content: %s", content)
          
          if response['status'] != '200':
              raise OAuthError(_(
                  u"Invalid status code %s while requesting %s: %s") % (
                      response['status'], url, content))
          
          return content
docs: Make signed requests against `url`.