How to enable autocomplete for enums

[BestMordaEver]

I have a table of text lines that correspond to lines in various locale files. It's formatted like this

---@enum (key) textLine
return {
  genericOK = true,
  warning = true,
  ...
}

These lines are filtered through a function

---@param locale table
---@param line textLine
---@param ... string
---@return string | table
local function processor (locale, line, ...)
...

Is there a way to enable autocomplete for the line parameter where it suggests string values from the lines file

[tomlau10]

seems @enum cannot be used on a return expression 😕
I tested and you have to use a local variable to do so (before returning it):

---@enum (key) textLine
local t = {
  genericOK = true,
  warning = true,
  ...
}
return t

Now textline will be equal to ---@alias "genericOK"|"warning"
and you can have suggestion for it

---@param locale table
---@param line textLine
---@param ... string
---@return string | table
local function processor (locale, line, ...)
    if line == --< here will suggest "genericOK" and "warning"
end

processor({}, --< here will suggest the enum keys as well