assertTrue(map instanceof RawMap);
RawMap rawMap = (RawMap) map;
File f = File.createTempFile("temp", ".gpkg", new File("target"));
FileOutputStream fout = new FileOutputStream(f);
rawMap.writeTo(fout);
fout.flush();
fout.close();
return new GeoPackage(f);
// File f = File.createTempFile("geopkg", "zip", new File("target"));