code: def test_compare_aliases(self, env, op, expect):
      t = env.from_string("{{{{ 2 is {op} }}}}".format(op=op))
      assert t.render() == str(expect)
  
imports: import pytest
  from jinja2 import Environment
  from jinja2 import Markup
label_desc: Use image node_id 8 for calling the TestTestsCase obj's underlying member method code with example usage: obj.test_compare_aliases(env, op, expect) without return types