code: def test_decode_error(self):
      err = None
      try:
          json.loads("{}\na\nb")
      except json.JSONDecodeError:
          err = sys.exc_info()[1]
      else:
          self.fail("Expected JSONDecodeError")
      self.assertEqual(err.lineno, 2)
      self.assertEqual(err.colno, 1)
      self.assertEqual(err.endlineno, 3)
      self.assertEqual(err.endcolno, 2)
  
file_path: catboost/contrib/python/simplejson/py3/simplejson/tests/test_errors.py
imports: import sys, pickle
  from unittest import TestCase
  import simplejson
  from simplejson.compat import text_type, b
label_desc: Use image node_id 3 for calling the TestErrors obj's underlying member method code with example usage: obj.test_decode_error() without return types