code: def mjml(parser, token):
      
      nodelist = parser.parse(('endmjml',))
      parser.delete_first_token()
      tokens = token.split_contents()
      if len(tokens) != 1:
          raise template.TemplateSyntaxError("'%r' tag doesn't receive any arguments." % tokens[0])
      return MJMLRenderNode(nodelist)
docs: Compile MJML template after render django template.
  
      Usage:
          {% mjml %}
              .. MJML template code ..
          {% endmjml %}