Hello! Thank you for your reply. Indeed, the best way is to learn the principles of this field and become very good without the help of AI or copying a function from the left and putting it on the right.
But what I wrote in my initial post refers to the same people who do the same thing (copy functions and paste them) and charge absolutely huge amounts of money. For example, to install an AutoHunt, I was asked for 100 euros, which I, without any experience, installed in a single day, perfectly functional.
I am referring to special situations, when you are told to look for a function, but you do not have that function in the source, or all kinds of hypothetical situations that you encounter without wanting to. Any advice is welcome.