code: public static Builder builder() {
      return new AutoValue_MapboxDirectionsRefresh.Builder()
        .baseUrl(Constants.BASE_API_URL)
        .routeIndex(ZERO)
        .legIndex(ZERO);
    }
docs: Build a new {@link MapboxDirectionsRefresh} builder with default initial values.
  
  @return a {@link Builder} for creating a default {@link MapboxDirectionsRefresh}
  @since 4.4.0