code: def _set_default(path, dest, name):
      '''
      Set the subvolume as the current default.
      '''
      subvol_id = __salt__['btrfs.subvolume_show'](path)[name]['subvolume id']
      return __salt__['btrfs.subvolume_set_default'](subvol_id, destf _set_default(path, dest, name):
      '''
      Set the subvolume as the current default.
      '''
      subvol_id = __salt__['btrfs.subvolume_show'](path)[name]['subvolume id']
      return __salt__['btrfs.subvolume_set_default'](subvol_id, dest)
docs: Set the subvolume as the current default.