we need to step back and make a closer look at the DRY principle. As I mentioned earlier, it stands for "Don’t Repeat Yourself" and requires that any piece of domain knowledge has a single representation in your code base. The words domain knowledge are key here. DRY is not about duplicating code. It is specifically about duplicating domain knowledge
This is actually a good point – to have a single representation of specific piece of domain knowledge in the code.
DRY is not about duplicating code.