Request: Add missing `owner` field to generated Dart models

[Equartey]

Before opening, please confirm:

• [X] I have installed the latest version of the Amplify CLI (see above), and confirmed that the issue still persists.
• [X] I have searched for duplicate or closed issues.
• [X] I have read the guide for submitting bug reports.
• [X] I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.

How did you install the Amplify CLI?

No response

If applicable, what version of Node.js are you using?

No response

Amplify CLI Version

10.8.1

What operating system are you using?

Mac

Amplify Codegen Command

codegen models

Describe the bug

Feature Request

Currently the generated Dart models lack the owner property when using appropriate auth rules despite this field existing in AppSync. This creates friction for Amplify-Flutter devs trying to make or filter requests including the owner field in a type safe manner.

Expected behavior

When I run amplify codegen models, I expect the generated Dart models to have a public owner field and associated query field definition. Such that I can access the following:

• Blog.owner
• Blog.OWNER.eq('user_name')

Reproduction steps

n/a

GraphQL schema(s)

type Post @model @auth(rules: [{allow: private, provider: iam,},
  { allow: owner, operations: [create, read, update, delete] }]){
  id: ID!
  title: String!
  content: String
  comments: [Comment] @hasMany
}

type Comment @model @auth(rules: [{allow: private, provider: iam},
  { allow: owner, operations: [create, read, update, delete] }]){
  id: ID!
  content: String
  post: Post @belongsTo(fields: ["postCommentsId"])
  postCommentsId: ID! 
}

Log output

n/a

Additional information

No response