code: def test_unique_nodelete():
      o = m.MyObject4(23)
      assert o.value == 23
      cstats = ConstructorStats.get(m.MyObject4)
      assert cstats.alive() == 1
      del o
      assert cstats.alive() == 1
      m.MyObject4.cleanup_all_instances()
      assert cstats.alive() == 0
  
file_path: coremltools/deps/pybind11/tests/test_smart_ptr.py
imports: import pytest
  from pybind11_tests import ConstructorStats
label_desc: Use image node_id 3 for calling a global function with example usage: test_unique_nodelete() without return types