function __TS__ArraySetLength(arr, length)
    if (((length < 0) or (length ~= length)) or (length == math.huge)) or (math.floor(length) ~= length) then
        error(
            "invalid array length: " .. tostring(length),
            0
        )
    end
    do
        local i = #arr - 1
        while i >= length do
            arr[i + 1] = nil
            i = i - 1
        end
    end
    return length
end