How would I make the RoStrap BigNum work on int Values?

Recently I have been trying to increase the Lua e+308 limit for int values in roblox, this RoStrap BigNum module seems to work BUT I am stuck on making this effect int values, could I have some help with this, I have been trying todo this for the last 5-6 hours.

If this does get answered I think this could help MANY more people in the future!

(Here is the page for the functions: https://rostrap.github.io/Libraries/Math/BigNum/#writing-optimal-code-with-bignum) (Here is the Module: https://github.com/RoStrap/Math/blob/master/BigNum.lua)

I can't post the code here since there is a 10K character limit