text: import {createStore, applyMiddleware} from 'redux';
  import rootReducer from '../reducers';
  import reduxImmutableStateInvariant from 'redux-immutable-state-invariant';
  import thunk from 'redux-thunk';
  
  export default function configureStore(initialState) {
      return createStore(
          rootReducer,
          initialState,
          applyMiddleware(thunk)
      );
  }
  