code: def _invoke_callbacks(self):
      for callback in self._done_callbacks:
          try:
              callback(self)
          except BaseException:
              LOGGER.exception(
                  f"exception calling callback for {self!r}"
              )
  
imports: from concurrent.futures import Future
  from concurrent.futures._base import LOGGER
label_desc: Use image node_id 1 for calling the Future obj's underlying member method code with example usage: obj._invoke_callbacks() without return types