"Not Authorized to access on type" error when accessing output from Custom Query, Mutation

Question

I created several custom mutations and queries as below and set their output to non-@model type.

```
type someOutput {
  a : Int
  b: String
}

type Mutation {
  someMutation(
    input: someInput!
  ): someOutput 
    @function(name: "lambdafunction-${env}")
    @auth(rules: [{
      allow: private
    }])
}
```

When I test this in AppSync, a "Not Authorized to access on type" error occurs.  
I couldn't solve it by setting globalAuthRule to public. It can be solved by granting field-level authorization to all fields.  
Is there any way to grant permission to non-@model type without using field level authorization? Or should I write the schema some other way?  
I am very confused because I have used schema written in the same way in other projects and used it well.

Accepted Answer

Solution here.  
```
type someOutput @aws_cognito_user_pools {
  a : Int
  b: String
}
```

"Not Authorized to access on type" error when accessing output from Custom Query, Mutation

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