code: def commentrepr(self) -> List[str]:
          
          if hydpy.pub.options.reprcomments:
              return [f'# {line}' for line in
                      textwrap.wrap(objecttools.description(self), 72)]
          return []
docs: A list with comments for making string representations
          more informative.
  
          With option |Options.reprcomments| being disabled,
          |Variable.commentrepr| is empty.