Credit Card # by card type & length

I am looking for options on how to control the card type and length of the card for some testing purposes. I appreciate the wide variety of card types and lengths generated for the CC type currently but there are times I want to limit to a single card type with fixed length. I am looking for something like what you can see here from faker https://github.com/joke2k/faker/blob/master/faker/providers/credit_card/init.py

Any suggestions on how to address via functions or would this need to be a roadmap request?

Great work and Love the tool!

Cheers,
C