code: def test_errorcallback_custom_ignore(self):
      # Issue #23215: MemoryError with custom error handlers and multibyte codecs
      data = 100 * "\udc00"
      codecs.register_error("test.ignore", codecs.ignore_errors)
      for enc in ALL_CJKENCODINGS:
          self.assertEqual(data.encode(enc, "test.ignore"), b"")
  
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 4 for calling the Test_MultibyteCodec obj's underlying member method code with example usage: obj.test_errorcallback_custom_ignore() without return types