String formatRow(
      String firstColumn,
      Function<Number, String> formatter,
      Function<Integer, Number> extractCells,
      Number lastColumn
    ) {
      return formatRow(firstColumn, extractCells.andThen(formatter), formatter.apply(lastColumn));
    }
Returns the minimum zoom a specific layer appears at in the tileset.
planetiler-core/src/main/java/com/onthegomap/planetiler/util/TilesetSummaryStatistics.java