code: def destination_uri_file_counts(self):
          
          counts = self._job_statistics().get("destinationUriFileCounts")
          if counts is not None:
              return [int(count) for count in counts]
          return None
docs: Return file counts from job statistics, if present.
  
          See:
          https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs#statistics.extract.destinationUriFileCounts
  
          Returns:
              a list of integer counts, each representing the number of files
              per destination URI or URI pattern specified in the extract
              configuration. These values will be in the same order as the URIs
              specified in the 'destinationUris' field.  Returns None if job is
              not yet complete.