default T inheritAttrsFromSourceWithMinzoom(int minzoom, String... keys) {
      for (var key : keys) {
        setAttrWithMinzoom(key, collector().source.getTag(key), minzoom);
      }
      return self();
    }
Copies the values for {@code keys} attributes from source feature to the output feature.
planetiler-core/src/main/java/com/onthegomap/planetiler/FeatureCollector.java