Typing changes for Record<unknown>[]

[pvaneck]

For Azure Monitor Ingestion, we have an API that takes an arbitrary list of JSON objects, and in the TypeSpec, I define it as:

body: Record<unknown>[]

I am noticing that TypeSpec is generating the Python code as:

body: Union[List[Dict[str, Any]], IO[bytes]]

where previously, with autorest, it was

JSON = MutableMapping[str, Any]
...
...
body: Union[List[JSON], IO[bytes]]

Should we maintain the JSON/MutableMapping typing for the Record<unknown>[] case? Or was this an intentional change?

[msyyc]

Dict is subclass of MutableMapping and I think there is not too much difference and the change doesn't influence runtime behavior.
@iscai-msft for awareness.