code: def _upload_simple(self, upload_info, _=None):
          
  
          upload_result = self._api.upload_simple(
              upload_info.fd,
              upload_info.name,
              folder_key=upload_info.folder_key,
              filedrop_key=upload_info.filedrop_key,
              path=upload_info.path,
              file_size=upload_info.size,
              file_hash=upload_info.hash_info.file,
              action_on_duplicate=upload_info.action_on_duplicate)
  
          logger.debug("upload_result: %s", upload_result)
  
          upload_key = upload_result['doupload']['key']
  
          return self._poll_upload(upload_key, 'upload/simple')
docs: Simple upload and return quickkey
  
          Can be used for small files smaller than UPLOAD_SIMPLE_LIMIT_BYTES
  
          upload_info -- UploadInfo object
          check_result -- ignored