code: def test_no_paren_for_arg1(self, env):
      tmpl = env.from_string("{{ foo is sameas none }}")
      assert tmpl.render(foo=None) == "True"
  
imports: import pytest
  from markupsafe import Markup
  from jinja2 import Environment
  from jinja2 import TemplateAssertionError
  from jinja2 import TemplateRuntimeError
label_desc: Use image node_id 10 for calling the TestTestsCase obj's underlying member method code with example usage: obj.test_no_paren_for_arg1(env) without return types