code: def tearDown(self):
      # to not leak references, we must clean _pointer_type_cache
      ctypes._reset_cache()
  
file_path: cpython/Lib/test/test_ctypes/test_incomplete.py
imports: import ctypes
  import unittest
  import warnings
  from ctypes import Structure, POINTER, pointer, c_char_p
label_desc: Use image node_id 1 for calling the TestSetPointerType obj's underlying member method code with example usage: obj.tearDown() without return types