docs: def render(self, context):
          """ Render node.
  
          :return str: Rendered string.
  
          """
          try:
              args, ctx = self.get_resolved_arguments(context)
              target = args[0]
              if not target:
                  return ''
              ctx['content'] = target
          except VariableDoesNotExist:
              return ''
  
          emitter = context.get('emitter')
          t_name = emitter.get_template_path(target)
          t = get_template(t_name)
          context.dicts.append(ctx)
          response = t.nodelist.render(context)
          context.pop()
          return response