Empty object or array are not acceptable default value literals

[agladysh]

I often want to write:

const $ = scope({
  param: {
    optional: 'Record<string,string>={}' // Same for arrays and =[]
  }
}).export();

But Arktype doesn't let me do that without using a longhand syntax with a lambda:

const $ = scope({
  param: {
    optional: [ 'Record<string,string>, '=', () => ({}) ]
  }
}).export();

It is OK if ugly, but ideally I would prefer to write everything in the string — especially since there is nothing dynamic going on to warrant a lambda.

Ideally the same would be possible for non-empty arrays and objects as well, but I can live without that — the use cases are much rarer.

Am I missing something here?