code: def urls(order_by: Optional[str] = None):
      
      url_rules: List[Rule] = current_app.url_map._rules
  
      # sort the rules. by default they're sorted by priority,
      # ie in the order they were registered with the app
      if order_by == 'view':
          url_rules = sorted(url_rules, key=lambda rule: _get_rule_view(rule))
      elif order_by != 'priority':
          url_rules = sorted(url_rules, key=lambda rule: getattr(rule, order_by))
  
      headings = ('Method(s)', 'Rule', 'Endpoint', 'View', 'Options')
      print_table(headings,
                  [(_get_http_methods(url_rule),
                    url_rule.rule if url_rule.strict_slashes
                                  else url_rule.rule.rstrip('/') + '[/]',
                    url_rule.endpoint,
                    _get_rule_view(url_rule),
                    _format_rule_options(url_rule),
                    ) for url_rule in url_rules],
                  ['<' if i > 0 else '>' for i, col in enumerate(headings)],
                  primary_column_idx=1)
docs: List all URLs registered with the app.