local speedUpRefTab = MyLibraryTable.subtable
for key, value in pairs(speedUpRefTab) do
end

local data = {
...
}
LibMultilingualName = LibMultilingualName or {} 
LibMultilingualName.RawData = LibMultilingualName.RawData or {} --Create a new table or use existing one
LibMultilingualName.RawData.ItemNames = LibMultilingualName.RawData.ItemNames or {} --Create a new sub-table (depending on the current file's data) or use existing one
 
LibMultilingualName.RawData.ItemNames["en"] = data --transfer the data with the given language to the table

--Once at the top
lib.clientlang = GetCVar("language.2")
if  not lib.clientlang then lib.clientlang = "en" end --fallback for unsupported languages to English
 
 
function LibMultilingualName.GetRawItemName(index, lang)
  if not index then return false end
  lang = lang or lib.clientLang
  local data = LibMultilingualName.RawData and LibMultilingualName.RawData.ItemNames and LibMultilingualName.RawData.ItemNames[lang]
  if not data or not data[index] then return false end
  return data[index]
end

local startItemId, endItemId = 1, 300000
local itemLinkPattern = "|H1:item:%s:1:50:0:0:0:0:0:0:0:0:0:0:0:0:ITEMSTYLE_NONE:0:0:0:10000:0|h|h"
--Function to scan the itemNames from the game's current clientLanguage.
--Change the clientlanguage ingam by using /script SetCVar("language.2", <2char language>) where <2char language> could be "en", "de", "fr", "ru", "jp"
-- or if custom language mods are installed: "es", "it", "pt", "pl"
--Parameters:
--nilable number startId ItemId to start the scan at. If left nil, value will be 1
--nilable number sendId ItemId to start the scan at. If left nil, value will be 300000
--Returns:
--table scannedItemNames = {[0] = "client language" as string, [number itemId] = "String item name", ...}
function LIB.ScanItemNames(startId, endId)
    startId = startId or  startItemId
    if startId < 1 then startId = 1 end
    endId = endId or  endItemId
    local scannedItemNames = {
        [0] = tostring(GetCVar("language.2"))
    }
    for itemId=startId, endId, 1 do
        local itemLink = string.format(itemLinkPattern, tostring(itemId))
        local itemName = GetItemLinkName(itemLink)
        scannedItemNames[itemId] = itemName or ""
    end
end