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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def destination_uri_file_counts(self):
 """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. """

        counts = self._job_statistics().get("destinationUriFileCounts")
        if counts is not None:
            return [int(count) for count in counts]
        return None