text: import { combineReducers } from 'redux';
  import authReducer from './authReducer';
  import errorReducer from './errorReducer';
  import profileReducer from './profileReducer';
  import postReducer from './postReducer';
  
  // global state keys
  export default combineReducers({
    auth: authReducer,
    errors: errorReducer,
    profile: profileReducer,
    post: postReducer
  });
  
  