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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 _delete_record(self, identifier=None, rtype=None, name=None, content=None):
 """Delete an existing record. If record does not exist, do nothing."""

        records = self._raw_records(identifier, rtype, name, content)
        LOGGER.debug('delete_records: %s', [rec['id'] for rec in records])
        self._update_records(records, {
            'deleterecord': True,
            'type': rtype,
            'hostname': name,
            'destination': content,
        })
        LOGGER.debug('delete_record: %s', True)
        return True