code: def test_none(capture, doc):
      assert doc(m.get_none) == "get_none() -> None"
      assert doc(m.print_none) == "print_none(arg0: None) -> None"
  
imports: import contextlib
  import sys
  import types
  import pytest
  import env
  from pybind11_tests import detailed_error_messages_enabled
  from pybind11_tests import pytypes
label_desc: Use image node_id 10 for calling a global function with example usage: test_none(capture, doc) without return types