code: def _check_retval_(value):
      # Receives a CHECKED instance.
      return str(value.value)
  
file_path: catboost/contrib/tools/python/src/Lib/ctypes/test/test_checkretval.py
imports: import unittest
  from ctypes import *
  from ctypes.test import need_symbol
label_desc: Use image node_id 1 for calling the CHECKED obj's underlying member method code with example usage: obj._check_retval_(value) and returns: str