code: def test_buffers(self):
      buf = ctypes.create_string_buffer(b"abc")
      self.assertEqual(len(buf), 3 + 1)
  
      buf = ctypes.create_string_buffer(b"ab\xe4\xf6\xfc")
      self.assertEqual(buf[:], b"ab\xe4\xf6\xfc\0")
      self.assertEqual(buf[::], b"ab\xe4\xf6\xfc\0")
      self.assertEqual(buf[::-1], b"\x00\xfc\xf6\xe4ba")
      self.assertEqual(buf[::2], b"a\xe4\xfc")
      self.assertEqual(buf[6:5:-1], b"")
  
file_path: cpython/Lib/test/test_ctypes/test_unicode.py
imports: import _ctypes_test
  import ctypes
  import unittest
label_desc: Use image node_id 4 for calling the StringTestCase obj's underlying member method code with example usage: obj.test_buffers() without return types