old_contents: import decimal
  from unittest import TestCase
  
  from json import decoder, encoder, scanner
  
  class TestSpeedups(TestCase):
      def test_scanstring(self):
          self.assertEqual(decoder.scanstring.__module__, "_json")
          self.assertTrue(decoder.scanstring is decoder.c_scanstring)
  
      def test_encode_basestring_ascii(self):
          self.assertEqual(encoder.encode_basestring_ascii.__module__, "_json")
          self.assertTrue(encoder.encode_basestring_ascii is
                            encoder.c_encode_basestring_ascii)
  
  class TestDecode(TestCase):
      def test_make_scanner(self):
          self.assertRaises(AttributeError, scanner.c_make_scanner, 1)
  
      def test_make_encoder(self):
          self.assertRaises(TypeError, encoder.c_make_encoder,
              (True, False),
              b"\xCD\x7D\x3D\x4E\x12\x4C\xF9\x79\xD7\x52\xBA\x82\xF2\x27\x4A\x7D\xA0\xCA\x75",
              None)
  
new_contents: from unittest import TestCase
  
  from json import decoder, encoder, scanner
  
  class TestSpeedups(TestCase):
      def test_scanstring(self):
          self.assertEqual(decoder.scanstring.__module__, "_json")
          self.assertTrue(decoder.scanstring is decoder.c_scanstring)
  
      def test_encode_basestring_ascii(self):
          self.assertEqual(encoder.encode_basestring_ascii.__module__, "_json")
          self.assertTrue(encoder.encode_basestring_ascii is
                            encoder.c_encode_basestring_ascii)
  
  class TestDecode(TestCase):
      def test_make_scanner(self):
          self.assertRaises(AttributeError, scanner.c_make_scanner, 1)
  
      def test_make_encoder(self):
          self.assertRaises(TypeError, encoder.c_make_encoder,
              (True, False),
              b"\xCD\x7D\x3D\x4E\x12\x4C\xF9\x79\xD7\x52\xBA\x82\xF2\x27\x4A\x7D\xA0\xCA\x75",
              None)
  
subject: Remove unnecessary import.