docs: public static <DR extends DateRange<DT>, DT> DR findDateRange(
              ReadableInstant instant, Collection<DR> dateRanges) {
          if (dateRanges.isEmpty()) {
              return null;
          }
  
          for (final DR dateRange : dateRanges) {
              if (dateRange.compareTo(instant) == 0) {
                  return dateRange;
              }
          }
  
          return null;
      }