code: def test_basic_roundtrip(self):
      for char in "&<>":
          self.assertEqual(
              char, self.decoder.decode(self.encoder.encode(char))
          )
  
file_path: catboost/contrib/python/simplejson/py3/simplejson/tests/test_encode_for_html.py
imports: import unittest
  import simplejson
label_desc: Use image node_id 4 for calling the TestEncodeForHTML obj's underlying member method code with example usage: obj.test_basic_roundtrip() without return types