code: def test_invalid_char_quotes(self):
      with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
          tomllib.loads("v = '\n'")
      self.assertTrue(" '\\n' " in str(exc_info.exception))
  
file_path: cpython/Lib/test/test_tomllib/test_error.py
imports: import unittest
  from .None import tomllib
label_desc: Use image node_id 3 for calling the TestError obj's underlying member method code with example usage: obj.test_invalid_char_quotes() without return types