code: def _request_login(self, method, **kwargs):
          
          url = self.url + '/ssllogin'
          # Build the XML-RPC HTTP request body by hand and send it with
          # treq.
          factory = KojiQueryFactory(path=None, host=None, method='sslLogin')
          payload = factory.payload
          try:
              response = yield method(url, data=payload, **kwargs)
          except ResponseFailed as e:
              failure = e.reasons[0]
              failure.raiseException()
          if response.code > 200:
              raise KojiLoginException('HTTP %d error' % response.code)
          # Process the XML-RPC response content from treq.
          content = yield response.content()
          if hasattr(xmlrpc, 'loads'):  # Python 2:
              result = xmlrpc.loads(content)[0][0]
          else:
              result = xmlrpc.client.loads(content)[0][0]
          defer.returnValue(result)
docs: Send a treq HTTP POST request to /ssllogin
  
          :param method: treq method to use, for example "treq.post" or
                         "treq_kerberos.post".
          :param kwargs: kwargs to pass to treq or treq_kerberos, for example
                         "auth" or "agent".
  
          :returns: deferred that when fired returns a dict from sslLogin