docs: def _process_results():
      """Process the results from an Async job."""
      async = get_current_async()
      callbacks = async.get_callbacks()
  
      if not isinstance(async.result.payload, AsyncException):
          callback = callbacks.get('success')
      else:
          callback = callbacks.get('error')
  
          if not callback:
              raise async.result.payload.exception, None, \
                  async.result.payload.traceback[2]
  
      return _execute_callback(async, callback)