code: def any(parser, open_kind, parse_fn, close_kind):
      # type: (Parser, int, Callable, int) -> Any
      
      expect(parser, open_kind)
      nodes = []
      while not skip(parser, close_kind):
          nodes.append(parse_fn(parser))
  
      return nodes
docs: Returns a possibly empty list of parse nodes, determined by
      the parse_fn. This list begins with a lex token of openKind
      and ends with a lex token of closeKind. Advances the parser
      to the next lex token after the closing token.