code: def testGetParent(self):
      try:
          parent = MPI.Comm.Get_parent()
          self.assertIsInstance(parent, MPI.Intercomm)
      except NotImplementedError:
          self.skipTest("mpi-comm-get_parent")
  
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 9 for calling the BaseTestComm obj's underlying member method code with example usage: obj.testGetParent() without return types