Randomize `status` value

Question

I'm trying to randomize the status returned by a Wiremock (version 2.33.2) endpoint.

Ideally, my configuration would be something like this:

{
  "mappings": [
    {
      "request": {
        "method": "PATCH",
        "urlPattern": "/giglio/random/supplier-stock/.*",
        "headers": {
          "Content-Type": {
            "equalTo": "application/json"
          }
        }
      },
      "response": {
        "status": {{pickRandom 200 500}}
      }
    }
  ]
}

but of course this is not a valid JSON so I get an error when trying to start Wiremock (Error loading file...).

If I wrap the offending line:

...
      "response": {
        "status": "{{pickRandom 200 500}}"
      }
...

then Wiremock complains that it Cannot deserialize value of type 'int' from String "{{pickRandom 200 500}}": not a valid 'int' value.

Is there a way to make this work?