{
   "id":"_ID_",
   "jsonrpc":"2.0",
   "method":"hub.scenes.scripts.add",
   "params":{
      "name":"Switch on all lights",
      "code": "require \"core\"\n local items = core.get_items()\n if items then \n \n for _, item in ipairs( items ) do\n core.set_item_value( item._id, true ) \n  end\n end"
   }
}