text: import ACTION_TYPES from '../ACTION_TYPES';
  
  const initialState = {
      userList: null
  };
  
  export default function userReducer(state = initialState, action) {
      switch (action.type) {
          case ACTION_TYPES.UI_ACTION.ON_USERS_DATA:
              return Object.assign({}, state, {userList: action.data});
          default:
              return state;
      }
  }