code: def setUp(self):
      if self.codec is None:
          self.codec = codecs.lookup(self.encoding)
      self.encode = self.codec.encode
      self.decode = self.codec.decode
      self.reader = self.codec.streamreader
      self.writer = self.codec.streamwriter
      self.incrementalencoder = self.codec.incrementalencoder
      self.incrementaldecoder = self.codec.incrementaldecoder
  
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 1 for calling the TestBase obj's underlying member method code with example usage: obj.setUp() without return types