Where is the id_set.json file utilized?

[TPhan]

The purpose of id_set.json is defined here https://xsoar.pan.dev/docs/documentation/pack-docs#how-do-you-find-pack-dependencies. So it's kind of like package-lock.json in NodeJS. However, where do we need to use it? I can only see it's being used in `demisto-sdk validate`.

[TanishaSheldon · Accepted solution]

The purpose of the file is to list what other packs and/or versions are required or optional for your pack to work properly. Required packs will be installed or updated when your pack is installed. The end user will get the opportunity to pick from the optional list if they want any additional packs installed.

To create the file it has its own command: demisto-sdk find-dependencies with different input parameters depending on if you have one already defined or not. 

The Guidelines section:https://xsoar.pan.dev/docs/contributing/contributing#guidelines walks through the overall process to give you an idea where it is created or updated.