code: def set_extra_info(self, username, extra_info):
          
          url = self._get_extra_info_url(username)
          make_request(url, method='PUT', body=extra_info, timeout=self.timeout)
docs: Set extra info for the given user.
  
          Raise a ServerError if an error occurs in the request process.
  
          @param username The username for the user to update.
          @param info The extra info as a JSON encoded string, or as a Python
              dictionary like object.