docs: private static String multiPolygonCoordinatesFromWkt(String wkt) {
          wkt = removeBrackets(wkt,1);
          String polygonsWithPipeSeparator = wkt.replaceAll("\\s*\\)\\s*\\)\\s*,\\s*\\(\\s*\\(\\s*","))|((");
          String[] polygons = polygonsWithPipeSeparator.split("\\|");
          String[] polygonsCoordinates = new String[polygons.length];
          for (int i=0;i<polygons.length;i++){
              polygonsCoordinates[i] = polygonCoordinatesFromWkt(polygons[i]);
          }
          String coordinates = Joiner.on(",").join(polygonsCoordinates);
          return String.format("[%s]", coordinates);
      }