code: def testHandleAdress(self):
      typemap = {
          ctypes.sizeof(ctypes.c_int): ctypes.c_int,
          ctypes.sizeof(ctypes.c_void_p): ctypes.c_void_p,
      }
      for obj in self.objects:
          handle_t = typemap[MPI._sizeof(obj)]
          oldobj = obj
          newobj = type(obj)()
          handle_old = handle_t.from_address(MPI._addressof(oldobj))
          handle_new = handle_t.from_address(MPI._addressof(newobj))
          handle_new.value = handle_old.value
          self.assertEqual(obj, newobj)
  
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 1 for calling the TestCTYPES obj's underlying member method code with example usage: obj.testHandleAdress() without return types