code: def test_xmlcharrefreplace(self):
      if self.has_iso10646:
          self.skipTest("encoding contains full ISO 10646 map")
  
      s = "\u0b13\u0b23\u0b60 nd eggs"
      self.assertEqual(
          self.encode(s, "xmlcharrefreplace")[0],
          b"&#2835;&#2851;&#2912; nd eggs",
      )
  
imports: import codecs
  import os
  import re
  import sys
  import unittest
  from http.client import HTTPException
  from test import support
  from io import BytesIO
label_desc: Use image node_id 4 for calling the TestBase obj's underlying member method code with example usage: obj.test_xmlcharrefreplace() without return types