我只想保存一个reducers的子状态（placeOfLiving）。这是我想要的子集的reducer。

const initialState = {
  name: 'John',
  age: 55,
  placeOfLiving: {
    city: 'Munich',
    zipCode: 1234,
  },
};

function userReducer(state = initialState, action) {
  switch (action.type) {
    // handle actions that modify the user state here
    default:
      return state;
  }
}

这是我的redux设置

import { persistStore, persistReducer } from 'redux-persist';
import storage from 'redux-persist/lib/storage';

const persistConfig = {
  key: 'root',
  storage,
  whitelist: ['user'],
};

const rootReducer = combineReducers({
  user: userReducer,
  settings: settingsReducer
});

const persistedReducer = persistReducer(persistConfig, rootReducer);

const store = createStore(persistedReducer);
const persistor = persistStore(store);

我怎么能只从userReducer中坚持和水合placeOfLiving呢？