This sort of pattern tends to be more useful in case it's something like `CustomString` rather than just a regular `String`, and you still want your function/me

This sort of pattern tends to be more useful in case it's something like `CustomString` rather than just a regular `String`, and you still want your function/method to work with regular string literals. Also, other similar usecases, where there's a custom type that can be made from a standard type.