code: def test_is_character_junk_true(self):
      for char in [" ", "\t"]:
          self.assertTrue(difflib.IS_CHARACTER_JUNK(char), repr(char))
  
imports: import difflib
  from test.support import findfile
  import unittest
  import doctest
  import sys
label_desc: Use image node_id 4 for calling the TestJunkAPIs obj's underlying member method code with example usage: obj.test_is_character_junk_true() without return types