code: def test_reraise(self):
      try:
          try:
              raise IndexError()
          except IndexError as e:
              exc1 = e
              raise
      except IndexError as exc2:
          self.assertIs(exc1, exc2)
      else:
          self.fail("No exception raised")
  
imports: from test import support
  import sys
  import types
  import unittest
label_desc: Use image node_id 2 for calling the TestRaise obj's underlying member method code with example usage: obj.test_reraise() without return types