code: def test_reversed_bug(self, test_env_async):
      tmpl = test_env_async.from_string(
          "{% for i in items %}{{ i }}"
          "{% if not loop.last %}"
          ",{% endif %}{% endfor %}"
      )
      assert tmpl.render(items=reversed([3, 2, 1])) == "1,2,3"
  
imports: import asyncio
  import pytest
  from jinja2 import DictLoader
  from jinja2 import Environment
  from jinja2 import Template
  from jinja2.asyncsupport import auto_aiter
  from jinja2.exceptions import TemplateNotFound
  from jinja2.exceptions import TemplatesNotFound
  from jinja2.exceptions import UndefinedError
label_desc: Use image node_id 16 for calling the TestAsyncForLoop obj's underlying member method code with example usage: obj.test_reversed_bug(test_env_async) without return types