System.Tuple<T1, T2, T3, T4>
namespace System
{
public class Tuple<
T1,
T2,
T3,
T4> :
IStructuralComparable,
IStructuralEquatable,
IComparable
{
public T1 Item1 { get; }
public T2 Item2 { get; }
public T3 Item3 { get; }
public T4 Item4 { get; }
public Tuple(
T1 item1,
T2 item2,
T3 item3,
T4 item4);
}
}