<PackageReference Include="System.ValueTuple" Version="4.5.0-rc1" />

System.ValueTuple<T1>

Represents a 1-tuple, or singleton, as a value type.
public T1 Item1

The current ValueTuple<T> instance's first component.

public ValueTuple(T1 item1)

Initializes a new instance of the ValueTuple<T> value type.

public int CompareTo(ValueTuple<T1> other)

Compares this instance to a specified instance and returns an indication of their relative values.

public bool Equals(ValueTuple<T1> other)

Returns a value that indicates whether the current ValueTuple<T> instance is equal to a specified ValueTuple<T>.