code: public static ZoneOffset getOffset(final ZoneId self, Instant instant) {
          return self.getRules().getOffset(instant);
      }
docs: Returns a {@link java.time.ZoneOffset} for this zone as of the provided {@link java.time.Instant}.
  
  @param self    a ZoneId
  @param instant an Instant
  @return a ZoneOffset
  @since 2.5.0