docs: public static byte[] idToBytes(final int tree_id) {
      if (tree_id < 1 || tree_id > 65535) {
        throw new IllegalArgumentException("Missing or invalid tree ID");
      }
      final byte[] id = Bytes.fromInt(tree_id);
      return Arrays.copyOfRange(id, id.length - TREE_ID_WIDTH, id.length);
    }