I mentioned this multiple times in different threads that personally I would find it cool if we had tuples as a struct while the general tuple syntax would become a tuple literal syntax which could also be used for other types such as for the python lib I believe.
Can we once and for all debunk if we could make this happen and keep source compatibility in the future. Obviously we would need variadic generics and at least generic parameter type labels.
struct Tuple<variadic Element>: ExpressibleByTupleLiteral { ... }
extension Tuple: Equatable where Element: Equatable { ... }
extension Tuple: Hashable where Element: Hashable { ... }
extension Tuple: Encoding where Element: Encoding { ... }
extension Tuple: Decoding where Element: Decoding { ... }
This would also allow for single element labeled tuples as we would have an unambiguous syntax (e.g. Tuple<label: Int>) and allow the average swift user to extend the type with custom protocol where appropriate.