code: def test_truth(self):
      self.assertFalse(self.type2test())
      self.assertTrue(self.type2test([42]))
  
imports: import unittest
  import sys
  import pickle
  from test import support
  from test.support import ALWAYS_EQ, NEVER_EQ
  from itertools import chain
label_desc: Use image node_id 2 for calling the CommonTest obj's underlying member method code with example usage: obj.test_truth() without return types