code: public Optional<Iterable<DbFileSources.Line>> getLines(DbSession dbSession, String fileUuid, int from, int toInclusive) {
      return getLines(dbSession, fileUuid, from, toInclusive, Function.identity());
    }
docs: Returns a range of lines as raw db data. User permission is not verified.
  @param from starts from 1
  @param toInclusive starts from 1, must be greater than or equal param {@code from}