code: def _upload_instant(self, upload_info, _=None):
          
  
          result = self._api.upload_instant(
              upload_info.name,
              upload_info.size,
              upload_info.hash_info.file,
              path=upload_info.path,
              folder_key=upload_info.folder_key,
              filedrop_key=upload_info.filedrop_key,
              action_on_duplicate=upload_info.action_on_duplicate
          )
  
          return UploadResult(
              action='upload/instant',
              quickkey=result['quickkey'],
              filename=result['filename'],
              revision=result['new_device_revision'],
              hash_=upload_info.hash_info.file,
              size=upload_info.size,
              created=None
          )
docs: Instant upload and return quickkey
  
          Can be used when the file is already stored somewhere in MediaFire
  
          upload_info -- UploadInfo object
          check_result -- ignored