How do I get Dictionary.AsJSON in scripting?

I'm trying to set a variable in my script (scripts in Events) with Dictionary.AsJSON,

I did this but it doesn't seem to return the correct data (JSON with keys/values):

var gameData = runtime.objects["dictGameData"].getFirstInstance()

How to get exact dictionary object as JSON using its name (e.g. "dictGameData") or maybe its UID and then get its all keys/values as JSON to set a variable?

For example, you have a dictionary of object type named call 'PlayerData'. Then you added the 'Level' key to the dictionary.

const playerData = runtime.objects.PlayerData.getFirstInstance().getDataMap();
const playLevel = playerData.get('Level');
console.log(playLevel);

Set Value

const playerData = runtime.objects.PlayerData.getFirstInstance().getDataMap();
playerData.set('Level', 20);
console.log(playerData.get('Level'));

For example, you have a dictionary...

Thanks for a good explanation, but this works with keys. But I need to get entire Dictionary.AsJSON in my script. Is it even possible without using extra variable?