$aubbc->add_tag(
          'tag' => 'Tag',               # Tag name:
          'type' => '#',                # Type number: tag style
          'function' => '',             # Function: subroutine to expand methods
          'message' => 'any',           # Message: of tag
          'extra' => '',                # Extra: of tag
          'markup' => '',               # Template: output
        );