code: def stdrepr_iterable(self, obj, *,
                           cls=None, before=None, after=None):
          
          if cls is None:
              cls = f'hrepr-{obj.__class__.__name__}'
          children = [self(a) for a in obj]
          return self.titled_box((before, after), children, 'h', 'h')[cls]
docs: Helper function to represent iterables. StdHRepr calls this on
          lists, tuples, sets and frozensets, but NOT on iterables in general.
          This method may be called to produce custom representations.
  
          Arguments:
              obj (iterable): The iterable to represent.
              cls (optional): The class name for the representation. If None,
                  stdrepr will use ``'hrepr-' + obj.__class__.___name__``
              before (optional): A string or a Tag to prepend to the elements.
              after (optional): A string or a Tag to append to the elements.