code: def test_adapt_subtype(self):
      class Sub(str):
          pass
  
      s1 = "hel'lo"
      s2 = Sub(s1)
      self.assertEqual(adapt(s1).getquoted(), adapt(s2).getquoted())
  
imports: import string
  import ctypes
  import decimal
  import datetime
  import platform
  from .None import testutils
  import unittest
  from .testutils import ConnectingTestCase, restore_types
  from .testutils import skip_if_crdb
  import psycopg2
  from psycopg2.extensions import AsIs, adapt, register_adapter
label_desc: Use image node_id 1 for calling the AdaptSubclassTest obj's underlying member method code with example usage: obj.test_adapt_subtype() without return types