Where can I find all supported scoop properties and helper functions

[ImMakSpy]

Hello

If found an unknown property pre_download in a scoop app manifest, but I couldn't find any information about it at

• https://github.com/ScoopInstaller/Scoop/wiki/App-Manifests

and in

• https://github.com/ScoopInstaller/Scoop/blob/master/schema.json

I only found an information at

• https://github.com/Ash258/Scoop-Core/releases?page=1
  at New features for version 0.5.5,
  where yaml files are used instead of json files,
  where I don't see any advantages.

Can anyone tell me, where I can find all supported scoop properties and helper functions?

[ImMakSpy]

I had a problem with the scoop json file checking in my editor.
Now pre_download is recognized as not defined attribute.

Therefore I close this discussion.