text: import { combineReducers } from 'redux';
  import authedUser from './authedUser';
  import tweets from './tweets';
  import users from './users';
  import { loadingBarReducer } from 'react-redux-loading';
  
  // we need to do this because the createStore function only accepts a single reducer
  export default combineReducers({ authedUser, tweets, users, loadingBar: loadingBarReducer });
  // we are also adding our loading bar reducer, to allow us to manipulate our loading