I'm using react and redux, how to reset the object back to `{}` again?

```
export default function checkInReducer(state = initialState.user, action) {
    switch (action.type) {
        case types.GET_USER_SUCCESS:
            return Object.assign({}, state, {
                ...action.user
              });

        case types.RESET_CHECKIN:
            //what should I do here? simply return {} ?

        default:
              return state; 
    }
}

```