code: def test_string_top_level(env):
      t = env.from_string("'Jinja'")
      result = t.render()
      assert result == "Jinja"
  
imports: import pytest
  from jinja2._compat import text_type
  from jinja2.exceptions import UndefinedError
  from jinja2.nativetypes import NativeEnvironment
  from jinja2.nativetypes import NativeTemplate
  from jinja2.runtime import Undefined
label_desc: Use image node_id 16 for calling a global function with example usage: test_string_top_level(env) without return types