code: def testPredefined(self):
      self.assertFalse(MPI.ERRHANDLER_NULL)
      self.assertTrue(MPI.ERRORS_ARE_FATAL)
      self.assertTrue(MPI.ERRORS_RETURN)
      if MPI.VERSION >= 4:
          self.assertTrue(MPI.ERRORS_ABORT)
      elif MPI.ERRORS_ABORT != MPI.ERRHANDLER_NULL:
          self.assertTrue(MPI.ERRORS_ABORT)
      else:
          self.assertFalse(MPI.ERRORS_ABORT)
  
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 1 for calling the TestErrhandler obj's underlying member method code with example usage: obj.testPredefined() without return types