[Help] How to get completion from file in folder if functions exported in table?

[B4rc1]

Basically I have two files, lib.lua and main.lua.
lib.lua:

local lib = {}

--- This is a function :)
function lib.tst()
	print("test")
end

return lib

In here I get completion and hover Information just fine (using neovim but I also confirmed this in VSCode):

main.lua:

local lib = require("lib")

but I can get no hover Information or completion here:

---

If I remove the table containing the function and just export the function globally, It works as expected:
lib.lua:

--- This is a function :)
function tst()
	print("test")
end

main.lua:

require("lib")
tst()

---

Is it possible to also get completion in the first case? I'm only starting to learn lua, but this seems very doable. I tried messing around with Lua.runtime.path, Lua.workspace.ignoreSubmodules and Lua.workspace.library but sadly to no avail. To my understanding the defaults should do what I want. Especially Lua.runtime.path with a default value of { "?.lua", "?/init.lua", "?/?.lua" } should Include lib.lua in the current directory right? And because it works globally in the second case, I'm confident it is not an issue with my setup.

[sumneko]

Your usage is correct, but I cannot reproduce this problem in VSCode. Please provide your log.

[B4rc1]

after checking the logs, it dawned on me, that ?.lua and ?/?.lua were not in my Lua.runtime.path. Then I remembered, I was using lua-dev to setup my language server for neovim plugin development. And it changes the default of Lua.runtime.path to lua/?.lua and lua/?/init.lua After adding ?.lua and ?/?.lua to my runtime path, it works as expected.

Thank you for your help!