code: def test_int(self):
      self.assertEqual(json.dumps(AlternateInt(1)), "1")
      self.assertEqual(json.dumps(AlternateInt(-1)), "-1")
      self.assertEqual(
          json.loads(json.dumps({AlternateInt(1): 1})), {"1": 1}
      )
  
file_path: catboost/contrib/python/simplejson/py2/simplejson/tests/test_subclass.py
imports: from unittest import TestCase
  import simplejson
  from decimal import Decimal
label_desc: Use image node_id 1 for calling the TestSubclass obj's underlying member method code with example usage: obj.test_int() without return types