text: import { createStore, applyMiddleware } from 'redux';
  import { createEpicMiddleware } from 'redux-observable';
  import { rootEpic, rootReducer } from './modules/root';
  
  
  export default function configureStore() {
      const epicMiddleware = createEpicMiddleware();
      const store = createStore(
          rootReducer,
          applyMiddleware(epicMiddleware)
      );
      epicMiddleware.run(rootEpic);
  
      return store;
  }