code: def test_leading_spaces(env):
      t = env.from_string(" {{ True }}")
      result = t.render()
      assert result == " True"
  
imports: import math
  import pytest
  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 21 for calling a global function with example usage: test_leading_spaces(env) without return types