code: def test_is_line_junk_true(self):
      for line in ["#", "  ", " #", "# ", " # ", ""]:
          self.assertTrue(difflib.IS_LINE_JUNK(line), repr(line))
  
imports: import difflib
  from test.support import findfile
  import unittest
  import doctest
  import sys
label_desc: Use image node_id 1 for calling the TestJunkAPIs obj's underlying member method code with example usage: obj.test_is_line_junk_true() without return types