pytiled_parser/tests/test_data/map_tests/template/template-tile-spritesheet.json

{ "object":
    {
     "gid":1,
     "height":32,
     "id":6,
     "name":"",
     "rotation":0,
     "type":"",
     "visible":true,
     "width":32
    },
 "tileset":
    {
     "firstgid":1,
     "source":"tile_set_image_for_template.json"
    },
 "type":"template"
}