code: public CurrencyDateCalculatorBuilder<Date> getDefaultCurrencyDateCalculatorBuilder(final String ccy1, final String ccy2, final SpotLag spotLag) {
          final CurrencyDateCalculatorBuilder<Date> builder = new CurrencyDateCalculatorBuilder<Date>().currencyPair(ccy1, ccy2, spotLag);
  
          return configureCurrencyCalculatorBuilder(builder).tenorHolidayHandler(new DateModifiedFollowingHandler());
      }
docs: Return a builder using the registered calendars/working weeks and a Modified Forward Holiday handler for the currency pair; this
  does NOT copy the calendars or Currency Config.
  
  If you want to change some of the parameters, simply modify the Builder returned and pass it to the constructor of the
  calculator you are interested in.