Question: Is there a way to return objects on rules?

[arantespp]

Question about GraphQL Shield

Is there a way to return objects on rules? I want to implement errors with union and return an object like this:

{
      "__typename": "NotAllowedError",
      "message": "User u-4 isn't allowed to access entity 1"
}

For example,

const ruleWithCustomObject = rule()(async (parent, args, ctx, info) => {
  return {
      "__typename": "NotAllowedError",
      "message": "User u-4 isn't allowed to access entity 1"
  }
})
 
const permissions = shield({
  Query: {
    user: ruleWithCustomObject,
  },
})

As far as I saw on the rules, they only allow the return: boolean | string | Error.

• [ x ] I have checked other questions and found none that matches mine.