code: def app_reverse(parser, token):
      
      bits = token.split_contents()
      if len(bits) < 3:
          raise TemplateSyntaxError(
              "'%s' takes at least two arguments"
              " (path to a view and a urlconf)" % bits[0])
      viewname = parser.compile_filter(bits[1])
      urlconf = parser.compile_filter(bits[2])
      args = []
      kwargs = {}
      asvar = None
      bits = bits[3:]
      if len(bits) >= 2 and bits[-2] == 'as':
          asvar = bits[-1]
          bits = bits[:-2]
  
      if len(bits):
          for bit in bits:
              match = kwarg_re.match(bit)
              if not match:
                  raise TemplateSyntaxError(
                      "Malformed arguments to app_reverse tag")
              name, value = match.groups()
              if name:
                  kwargs[name] = parser.compile_filter(value)
              else:
                  args.append(parser.compile_filter(value))
  
      return AppReverseNode(viewname, urlconf, args, kwargs, asvar)
docs: Returns an absolute URL for applications integrated with ApplicationContent
      The tag mostly works the same way as Django's own {% url %} tag::
          {% load leonardo_tags %}
          {% app_reverse "mymodel_detail" "myapp.urls" arg1 arg2 %}
          or
          {% load leonardo_tags %}
          {% app_reverse "mymodel_detail" "myapp.urls" name1=value1 %}
      The first argument is a path to a view. The second argument is the URLconf
      under which this app is known to the ApplicationContent. The second
      argument may also be a request object if you want to reverse an URL
      belonging to the current application content.
      Other arguments are space-separated values that will be filled in place of
      positional and keyword arguments in the URL. Don't mix positional and
      keyword arguments.
      If you want to store the URL in a variable instead of showing it right away
      you can do so too::
          {% app_reverse "mymodel_detail" "myapp.urls" arg1 arg2 as url %}