Expression Advanced 3
#Trello: https://trello.com/b/SwiMrYBH/expression-advanced-3
#Grammar: https://github.com/Rusketh/ExpAdv3/blob/master/lua/expression3/parser.lua#L14
#Extensions and API: https://github.com/Rusketh/ExpAdv3/blob/master/lua/expression3/expr_lib.lua#L10
#Discord: https://discord.gg/CtBdU7m