docs: public void setInto(ReadWritablePeriod writablePeriod, Object object, Chronology chrono) {
          ReadableDuration dur = (ReadableDuration) object;
          chrono = DateTimeUtils.getChronology(chrono);
          long duration = dur.getMillis();
          int[] values = chrono.get(writablePeriod, duration);
          for (int i = 0; i < values.length; i++) {
              writablePeriod.setValue(i, values[i]);
          }
      }