engine.GetAddons
Example
Will return a list of all the workshop addons you have downloaded / are downloading.
Output: 1:
downloaded = true
models = 0
title = Title of Addon
file = addons/title_of_addon_123456789.gma
mounted = true
wsid = 123456789
size = 13379999
updated = 37419284747
tags =
timeadded = 4157213484