code: def testMemoryModel(self):
      models = (MPI.WIN_SEPARATE, MPI.WIN_UNIFIED)
      model = self.WIN.Get_attr(MPI.WIN_MODEL)
      self.assertIn(model, models)
      self.assertEqual(model, self.WIN.model)
  
imports: from mpi4py import MPI
  import mpiunittest
  import sys
label_desc: Use image node_id 9 for calling the BaseTestWin obj's underlying member method code with example usage: obj.testMemoryModel() without return types