code: def test_g2(self):
      iso2022jp2 = b"\x1b(B:hu4:unit\x1b.A\x1bNi de famille"
      uni = ":hu4:unit\xe9 de famille"
      self.assertEqual(iso2022jp2.decode("iso2022-jp-2"), uni)
  
imports: import _multibytecodec
  import codecs
  import io
  import sys
  import textwrap
  import unittest
  from test import support
  from test.support import os_helper
  from test.support.os_helper import TESTFN
label_desc: Use image node_id 1 for calling the Test_ISO2022 obj's underlying member method code with example usage: obj.test_g2() without return types