code: def assertRoundTrip(self, obj, other, for_json=True):
      if for_json is None:
          # None will use the default
          s = json.dumps(obj)
      else:
          s = json.dumps(obj, for_json=for_json)
      self.assertEqual(json.loads(s), other)
  
imports: import unittest
  import simplejson
label_desc: Use image node_id 1 for calling the TestForJson obj's underlying member method code with example usage: obj.assertRoundTrip(obj, other, for_json) without return types