code: def test_constructor(self):
      other_tb = get_tb()
      frame = sys._getframe()
  
      tb = types.TracebackType(other_tb, frame, 1, 2)
      self.assertEqual(tb.tb_next, other_tb)
      self.assertEqual(tb.tb_frame, frame)
      self.assertEqual(tb.tb_lasti, 1)
      self.assertEqual(tb.tb_lineno, 2)
  
      tb = types.TracebackType(None, frame, 1, 2)
      self.assertEqual(tb.tb_next, None)
  
      with self.assertRaises(TypeError):
          types.TracebackType("no", frame, 1, 2)
  
      with self.assertRaises(TypeError):
          types.TracebackType(other_tb, "no", 1, 2)
  
      with self.assertRaises(TypeError):
          types.TracebackType(other_tb, frame, "no", 2)
  
      with self.assertRaises(TypeError):
          types.TracebackType(other_tb, frame, 1, "nuh-uh")
  
imports: from test import support
  import sys
  import types
  import unittest
label_desc: Use image node_id 3 for calling the TestTracebackType obj's underlying member method code with example usage: obj.test_constructor() without return types