text: import { combineReducers } from "redux";
  import { routerReducer } from "react-router-redux";
  import ridershipOverTime from "./decline-in-ridership";
  import serviceAndRidership from "./service-and-ridership";
  import driversOfParticipation from "./drivers-of-participation";
  
  export default function createReducer(asyncReducers) {
    return combineReducers({
      routing: routerReducer,
      ridershipOverTime,
      serviceAndRidership,
      driversOfParticipation,
      ...asyncReducers
    });
  }
  