Based on https://www.servicenow.com/community/admin-experience-blogs/creating-a-batch-installer-for-store-updates/ba-p/3038560

This is NOT meant to be a complete solution for you to download and use without verification. This is not a ServiceNow store app. It is meant to show an example implementation of the Community article linked above.

It's always a good idea to review open-source code from the internet before using it.