code: public static Period rightShift(final Year self, Year year) {
          return Period.between(self.atDay(1), year.atDay(1));
      }
docs: Returns a {@link java.time.Period} between the first day of this year (inclusive) and the first day of the
  provided {@link java.time.Year} (exclusive).
  
  @param self a Year
  @param year another Year
  @return a Period between the Years
  @since 2.5.0