docs: def _get_baseline_from_tag(config, tag):
      '''
      Returns the last created baseline snapshot marked with `tag`
      '''
      last_snapshot = None
      for snapshot in __salt__['snapper.list_snapshots'](config):
          if tag == snapshot['userdata'].get("baseline_tag"):
              if not last_snapshot or last_snapshot['timestamp'] < snapshot['timestamp']:
                  last_snapshot = snapshot
      return last_snapshot