public LoopLineMerger setMergeStrokes(boolean mergeStrokes) {
    this.mergeStrokes = mergeStrokes;
    return this;
  }
Enables or disables stroke merging. Stroke merging connects the straightest pairs of linestrings at junctions with
3 or more attached linestrings based on the angle between them.
planetiler-core/src/main/java/com/onthegomap/planetiler/util/LoopLineMerger.java