Customising edit widget UI

How to get the UI which appears when you try editing clock widget (City) in iOS 14 beta 7?

Here it tells it all depends upon the intent definition file

https://developer.apple.com/documentation/widgetkit/making-a-configurable-widget

so how to configure the intent definition file?
what kind of params should it have and relationships between params if any
Customising edit widget UI
 
 
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