code: def _get_resource_raw(
          self, cls, id, extra=None, headers=None, stream=False, **filters
      ):
          
          headers = headers or {}
          headers.update(self.session.headers)
  
          postfix = "/{}".format(extra) if extra else ""
          if cls.api_root != "a":
              url = "{}/{}/{}{}".format(self.api_server, cls.collection_name, id, postfix)
          else:
              url = "{}/a/{}/{}/{}{}".format(
                  self.api_server, self.app_id, cls.collection_name, id, postfix
              )
  
          converted_filters = convert_datetimes_to_timestamps(
              filters, cls.datetime_filter_attrs
          )
          url = str(URLObject(url).add_query_params(converted_filters.items()))
          response = self._get_http_session(cls.api_root).get(
              url, headers=headers, stream=stream
          )
          return _validate(response)
docs: Get an individual REST resource