Tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>

// 14 items in an object: Item1…Item14, fixed when it is made.
public class System.Tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> : System.Any, System.IToString, System.IHashable<System.Tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>>
{
    field Item1: T1
    field Item2: T2
    field Item3: T3
    field Item4: T4
    field Item5: T5
    field Item6: T6
    field Item7: T7
    field Item8: T8
    field Item9: T9
    field Item10: T10
    field Item11: T11
    field Item12: T12
    field Item13: T13
    field Item14: T14
    constructor Tuple(Item1: T1, Item2: T2, Item3: T3, Item4: T4, Item5: T5, Item6: T6, Item7: T7, Item8: T8, Item9: T9, Item10: T10, Item11: T11, Item12: T12, Item13: T13, Item14: T14)
    // The same items in a ValueTuple.
    method ToValueTuple() -> System.ValueTuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>
    method ToString() -> System.String<u8>
    method Hash() -> u64
    method Equals(other: System.Tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>) -> bool
}