Although the queryRuleCustomData widget is not specifically available in Autocomplete, the custom data used by this widget to display a banner is available in the JSON response when a corresponding Rule is triggered.
In this sample response to a query that has triggered a Rule to return custom data, the banner image is available by accessing the userData attribute ( userData[0].image specifically for the banner).
{
"hits": [],
"userData": [
{
"image": "https://YOURIMAGEDOMAIN.YOURIMAGE.jpg",
"title": "YOUR TITLE"
}
],
"nbHits": 0,
...
}
You can customize Autocomplete to display/use this image. This guide to Populating Autocomplete with Sources may be helpful in getting started with your customization. [Note: Customization and implementation guidance is out-of-scope for the Support Team.]