<PackageReference Include="Microsoft.Bcl" Version="1.1.10" />

System.Tuple<T1, T2, T3>

Represents an 3-tuple, or triple.
public T1 Item1 { get; }

Gets the value of the current tuple object's first component.

public T2 Item2 { get; }

Gets the value of the current tuple object's second component.

public T3 Item3 { get; }

Gets the value of the current tuple object's third component.

public Tuple(T1 item1, T2 item2, T3 item3)

Initializes a new instance of the Tuple<T, U, V> class.