code: def exportFile(self, jobStoreFileID, dstUrl):
          
          dstUrl = urlparse.urlparse(dstUrl)
          otherCls = self._findJobStoreForUrl(dstUrl, export=True)
          self._exportFile(otherCls, jobStoreFileID, dstUrl)
docs: Exports file to destination pointed at by the destination URL.
  
          Refer to :meth:`.AbstractJobStore.importFile` documentation for currently supported URL schemes.
  
          Note that the helper method _exportFile is used to read from the source and write to
          destination. To implement any optimizations that circumvent this, the _exportFile method
          should be overridden by subclasses of AbstractJobStore.
  
          :param str jobStoreFileID: The id of the file in the job store that should be exported.
          :param str dstUrl: URL that points to a file or object in the storage mechanism of a
                  supported URL scheme e.g. a blob in an Azure Blob Storage container.