docs: def _parse_blkio_metrics(self, stats):
          """Parse the blkio metrics."""
          metrics = {
              'io_read': 0,
              'io_write': 0,
          }
          for line in stats:
              if 'Read' in line:
                  metrics['io_read'] += int(line.split()[2])
              if 'Write' in line:
                  metrics['io_write'] += int(line.split()[2])
          return metrics