A way to quicken exam processes

This is less a question and more of a suggestion.

I kind of get the essence of a time limit in the exams and see it's importance in regulation, but for coding courses like python, sql, numpy and the like... could the codes from the questions asked be made open for copying and pasting to quicken the process of having to type down the codes manually?

I believe this would aid students save more time when answering questions, having more time to review what they have done!

Or is there another means this could be achieved???