Welcome to Microsoft Q&A Platform, thanks for posting your query here.
Can you try this Get Packager API: https://video2.skills-academy.com/en-us/rest/api/compute/cloudservices/rest-get-package
The Get Package operation retrieves a cloud service package for a deployment and stores the package files in Microsoft Azure Blob storage.
Hope this helps.
If you need further help on this, tag me in a comment.
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