code: def test_ref_qualified():
      """Tests that explicit lvalue ref-qualified methods can be called just like their
      non ref-qualified counterparts."""
  
      r = m.RefQualified()
      assert r.value == 0
      r.refQualified(17)
      assert r.value == 17
      assert r.constRefQualified(23) == 40
  
imports: import sys
  import pytest
  import env
  from pybind11_tests import ConstructorStats
  from pybind11_tests import methods_and_attributes
label_desc: Use image node_id 17 for calling a global function with example usage: test_ref_qualified() without return types