While there are isolated use cases for returning multiple values (quotient/remainder being a good example), all of the real-world cases I've seen where the auth

While there are isolated use cases for returning multiple values (quotient/remainder being a good example), all of the real-world cases I've seen where the author tried have been a serious code smell, a missed warning that the encapsulation was weak. Refactoring to use single return values or coherent value objects almost always produced cleaner, more readable, more testable code as a result.