Why is my function not recieving the arguments?

I am working on a game that requires to be synced with trello boards, so I am using the Trello API by nstrike159, which is a module script. And one of the functions in it is:

function T:AddCard(...)
        local url
        local args={...}
        local dat=nil
        if #args==3 then
            local nam,des,lid=args[1],args[2],args[3]
            dat={
            name=nam,
            desc=des.."",
            idList=lid,
            urlSource=nil,
            due=nil
            }
            --here,, I sent 3 arguments, and the table is supposed to contain them, but for some reason (scroll down until you see more notes on line 71 and 73) it is not recieving arguments.

        elseif #args==4 then
            local nam,des,lid,url=args[1],args[2],args[3],args[4]
            dat={
            name=nam,
            desc=""..des,
            idList=lid,
            urlSource=url,
            due=nil
            }
        elseif #args==5 then
            local nam,des,lid,url,po=args[1],args[2],args[3],args[4],args[5]
            dat={
            name=nam,
            desc=""..des,
            idList=lid,
            urlSource=url,
            pos=po,
            due=nil
            }
        elseif #args==6 then
            local nam,des,lid,url,po,de=args[1],args[2],args[3],args[4],args[5],args[6]
            dat={
            name=nam,
            desc=""..des,
            idList=lid,
            urlSource=url,
            pos=po,
            due=de
            }
        elseif #args==7 then
            local nam,des,lid,url,po,de,label=args[1],args[2],args[3],args[4],args[5],args[6],args[7]
            dat={
            name=nam,
            desc=""..des,
            idList=lid,
            urlSource=url,
            pos=po,
            due=de,
            labels=label
            }
        elseif #args==8 then
            local nam,des,lid,url,po,de,label,cc=args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8]
            dat={
            name=nam,
            desc=""..des,
            idList=lid,
            urlSource=url,
            pos=po,
            due=de,
            labels=label,
            idCardSource=cc
            }
        end
        local data
        if dat~= nil then
            data=HS:JSONEncode(dat) --this is not ran
        else
            error("No Parameters Found!") --this is ran
            return false
        end
        if Private then
            getAddon()
            url="https://api.trello.com/1/cards"..addon
        else
             getAddon()
             url="https://api.trello.com/1/cards"..addon
        end
        local re=HS:PostAsync(url,data)
        return HS:JSONDecode(re)
    end

to call the function I use

wait(5)
local Trello = require(script.Parent)
print("TrelloAPI ready")


Trello.AddCard("0.0.0.0","Test","8yeLFTbN")