old_contents: import { combineReducers } from 'redux';
  import assets from './assets';
  import packages from './packages';
  
  export default () => combineReducers({
    packages,
    assets,
  });
  
new_contents: /* eslint-disable no-console */
  import { isDev } from 'worona-deps';
  import { combineReducers } from 'redux';
  import assets from './assets';
  import packages from './packages';
  
  const log = (state, action) => {
    if (isDev && !action.type.startsWith('@@redux')) console.log(action); return false;
  };
  
  export default () => combineReducers({
    packages,
    assets,
    log,
  });
  
subject: Add log in console (devtools don't work well)