Flutter Autofill for IOS Associated Domains

I'm having trouble fully understanding the autofill feature. The documentation on the Flutter website talks about the additional setup required for IOS.

https://api.flutter.dev/flutter/material/TextField/autofillHints.html

Set up your iOS app's associated domains.

The documentation talks about posting the file on a trusted site. The procedure itself, and adding it to Xcode seems clear to me. What I have a problem with is what exactly this file should look like.

Of course, I already have the whole thing in dart fully written and configured. It works very well on Android.

Can anyone suggest what this file should look like?

  "applinks": {
      "details": [
           {
             "appIDs": [ "ABCDE12345.com.example.app", "ABCDE12345.com.example.app2" ],
             "components": [
               {
                  "#": "no_universal_links",
                  "exclude": true,
                  "comment": "Matches any URL whose fragment equals no_universal_links and instructs the system not to open it as a universal link"
               },
               {
                  "/": "/buy/*",
                  "comment": "Matches any URL whose path starts with /buy/"
               },
               {
                  "/": "/help/website/*",
                  "exclude": true,
                  "comment": "Matches any URL whose path starts with /help/website/ and instructs the system not to open it as a universal link"
               },
               {
                  "/": "/help/*",
                  "?": { "articleNumber": "????" },
                  "comment": "Matches any URL whose path starts with /help/ and which has a query item with name 'articleNumber' and a value of exactly 4 characters"
               }
             ]
           }
       ]
   },
   "webcredentials": {
      "apps": [ "ABCDE12345.com.example.app" ]
   },

    "appclips": {
        "apps": ["ABCED12345.com.example.MyApp.Clip"]
    }
}```