code: def _exportFile(self, otherCls, jobStoreFileID, url):
          
          with self.readFileStream(jobStoreFileID) as readable:
              otherCls._writeToUrl(readable, url)
docs: Refer to exportFile docstring for information about this method.
  
          :param AbstractJobStore otherCls: The concrete subclass of AbstractJobStore that supports
                 exporting to the given URL. Note that the type annotation here is not completely
                 accurate. This is not an instance, it's a class, but there is no way to reflect
                 that in :pep:`484` type hints.
  
          :param str jobStoreFileID: The id of the file that will be exported.
  
          :param urlparse.ParseResult url: The parsed URL of the file to export to.