Script Action failing to map Zendesk priority to GC disposition

Could use a hand troubleshooting this Script Action that refuses to update the Genesys Cloud disposition field when migrating from Zendesk. The REST API call returns 400 Bad Request because the payload structure for the disposition ID doesn’t match the Zendesk priority integer format we’re pushing.

Is there a specific transform function in the Architect data action to handle this integer-to-string conversion for the disposition lookup?